Index

Publications

List of publications Karl Mandel


Logo: The Supraparticle Group


 

Peer reviewed journal publications

2024

[114]   Zink A., Reichstein J., Ruhland N., Stpckinger N., Morozov B. S., Cuadrado Collados C., Thommes M., Kataev E. A., Wintzheimer S., Mandel K.,
Mesoporous supraparticles with a tailored solid-liquid-gas interface for visual indication of H2 gas and NH3 vapour
In: Chemical Communications (2024), just accepted
DOI:

 

 

[113]    Groppe P., Reichstein J., Carl S., Cuadrado Collados C., Niebuur B., Zhang K., Apeleo Zubiri B., Libuda J. Kraus K. Retzer T. Thommes M., Spiecker E., Wintzheimer S., Mandel K.,
Catalyst Supraparticles: Tuning the Structure of Spray-dried Pt/SiO2 Supraparticles via Salt-based Colloidal Manipulation to Control their Catalytic Performance
In: Small (2024), just accepted
DOI:

 

 

[112]   Dehm K., Zanetti A., Fett B., Mauritz V., Hamburger R., Langford D., Guldi D., Young E.,  Mandel K. Crisp R.
Alteration of the Optoelectronic Properties of CuInS2 Quantum Dots via Colloidal Annealing
In: Chrystal Growth & Design (2024), just accepted
DOI:

 

 

[111]   Raczka T., Wolf A., Reichstein J., Stauch C., Schug B., Müssig S., Mandel K.
Influence of magnetic interactions in iron oxide nanoparticle polymer composites on magnetism and induction heating
In: Journal of Magnetism and Magnetic Materials (2024)
DOI: 10.1016/j.jmmm.2024.172042

 

 

[110]   Reichstein J., Groppe P., Stockinger N., Cuadrado Collados C., Thommes M., Wintzheimer S., Mandel K.
Safety Through Visibility: Tracing Hydrogen in Colors with Highly Customizable and Flexibly Applicable Supraparticle Additives
In: Advanced Materials Technologies (2024), just accepted
DOI:

 

 

[109]    Zhou H., Prieschl J., Groppe P., Mandel K., Wintzheimer S.
One-step fabrication of platelet-shaped Janus supraparticles via spray-drying
In: Powder Technology (2024)
DOI: 10.1016/j.powtec.2024.119756

 

 

[108]   Drenkova-Tuhtan A., Inskeep C. S., Luthardt L., Deuso S., Ballweg T., Hanselmann D., Bealu Z., Meyer C., Schug B., Steinmetz H., Mandel K.
Reusable and inductively regenerable magnetic activated carbon for removal of organic micropollutants from secondary wastewater effluents
In: Water Research (2024)
DOI: 10.1016/j.watres.2024.121525

 

 

[107]   Wolf A., Sauer J., Hurle K., Müssig S. and Mandel K.
Magnetic supraparticles capable of recording high temperature events
In: Advanced Funtional Materials (2024)
DOI: 10.1002/adfm.202316212

 

 

[106]   Drenkova-Tuhtan A., Sihtmäe M., Uke K., Vija H., Oppmann M., Prieschl J., Mandel K., Kahru A.
Assessing the ecotoxicity of various metal oxide/ hydroxide nanocomposites for phosphorus adsorption and recovery from wastewater using naturally bioluminescent bacteria Vibrio fischeri
In: Journal of Cleaner Production (2024)
DOI: 10.1016/j.jclepro.2024.141287

 

 

 

[105]   Reichstein J., Luthardt L., Martello V.G., Pianetti A., Wintzheimer S., Mandel K.
Modulating the Microenvironment of Coumarin Dyes within Multihierarchical Supraparticles: En Route Toward Versatile Luminescent Dual-Threshold Temperature Indicators with Ratiometric Readout
In: Advanced Optical Materials (2024)
DOI: 10.1002/adom.202303346

 

 

[104]    Zimmermann T., Deues M., Garbe T., Löbmann P., Mandel K., Wintzheimer S.
Nature-Inspired Regenerative Fine-Dust-Catching Coatings to Improve Air Quality
In: ACS Applied Materials & Interfaces (2024), just accepted
DOI: 10.1021/acsami.3c19074

 

 

[103]   Wenderoth S., Milana P., Zimmermann T., Deues M., Oppmann M., Prieschl J., Mostoni S., Scotti R., Wintzheimer S., Mandel K.
Assembly of Zinc-Single-Site-Containing Silica Nanoparticles to Supraparticle Powders with Destructibility to Serve as Filler and Vulcanization Activator in Rubbers
In: Particle and Particle Systems Characterizations (2024)
DOI: 10.1002/ppsc.202300161

 

 

[102]    Zhou H., Groppe P., Zimmermann T., Wintzheimer S., Mandel K.
Influence of cation concentration and valence on the structure and texture of spray-dried supraparticles from colloidal silica dispersions
In: Journal of Colloid and Interface Science (2024)
DOI: 10.1016/j.jcis.2023.12.051

 

 

[101]    Zimmermann T., Stauch C., Bittel L., Jüngling N., Muhamettursun M., Halik M., Niesner J., Wintzheimer S., Lyons A., Löbmann P., Mandel K.
Sol-gel coatings for solar cover glass: Influence of surface structure on dust accumulation and removal
In: Solar Energy (2024)
DOI: 10.1016/j.solener.2023.112246

2023

[100]    Wintzheimer S., Luthardt L., Cao K.L.A., Imaz I., Maspoch D., Ogi T., Bück A., Debecker D.P., Faustini M., Mandel K.
Multifunctional, hybrid materials design via spray-drying: much more than just drying
In: Advanced  Materials (2023)
DOI: 10.1002/adma.202306648

 

 

[99]    Reichstein J., Müssig S., Wintzheimer S., Mandel K.
Communicating supraparticles to enable perceptual, information-providing matter
In: Advanced  Materials (2023)
DOI: 10.1002/adma.202306728

 

 

[98]    Zhang K., Reichstein J., Groppe P., Schötz S., Stockinger N., Libuda J., Mandel K., Wintzheimer S., Retzer T.
Molecular and structural insights into H2 indicator supraparticles: lowering the limit of detection by tuning incorporated catalyst nanoparticles
In: Chemistry of Materials (2023)
DOI: 10.1021/acs.chemmater.3c01105

 

 

[97]     Zimmermann T., Madubuko N., Groppe P., Raczka T., Dünninger N., Tacardi N., Carl S., Apeleo Zubiri B., Spiecker E., Wasserscheid P., Mandel K., Haumann M., Wintzheimer S.
Supraparticles on beads for supported catalytically active liquid metal solutions – the SCALMS suprabead concept
In: Materials Horizons (2023)
DOI: 10.1039/D3MH01020A

 

 

[96]    Chiera S., Ghetina M., Zimmermann T., Wintzheimer S., Stauch C., Löbmann P., Mandel K., Vogel N.
Mechanical Stability of Liquid-Infused Surfaces based on Mussel-Inspired Polydopamine Chemistry
In: Macromolecular Materials and Engineering (2023)
DOI: 10.1002/mame.202300191

 

 

[95]     Dembski S., Schwarz T., Oppmann M., Tareq Bandesha S., Schmid J., Wenderoth S., Mandel K., Hansmann J.
Establishing and testing a robot-based platform to enable the automated production of nanoparticles in a flexible and modular way
In: Scientific Reports (2023)
DOI: 10.1038/s41598-023-38535-6

 

 

[94]    Wolf A., Zink A., Stiegler L., Branscheid R., Apeleo Zubiri B., Müssig S., Peukert W., Walter J., Spiecker E., Mandel K.
Magnetic In Situ Determination of Surface Coordination Motifs by Utilizing the Degree of Particle Agglomeration
In: Journal of Colloid and Interface Science (2023)
DOI: 10.1016/j.jcis.2023.05.182

 

 

[93]    Lange S., Fett B., Kabaklı Ö. S., Adner D., Kroyer T., Bogati S., Schulze P.S.C., Herbig B., Hagendorf C., Sextl G., Mandel K.
Enhancement of NiOx/poly-Si Contact Performance by Insertion of an Ultrathin Metallic Ni Interlayer
In: Physica Status Solidi A (2023)
DOI: 10.1002/pssa.202200882

 

 

[92]    Fett B., Kabaklı Ö. S., Romero Sierra C. A., Schulze P. S. C., Yoon S., Herbig B., Glunz S., Goldschmidt J.C., Sextl G., Mandel K.
In-situ crystallization of the inorganic lead-free halide double perovskite Cs2AgBiBr6 via spray-drying
In: ACS Applied Energy Materials (2023)
DOI: 10.1021/acsaem.3c00409

 

 

[91]    Zhang K., Schötz S., Reichstein J., Groppe P., Stockinger N., Wintzheimer S., Mandel K., Libuda J., Retzer T.
Supraparticles for naked-eye H2 indication and monitoring: improving performance by variation of the catalyst nanoparticles
In: The Journal of Chemical Physics  (2023)
DOI: 10.1063/5.0135130

2022

[90]    Seuffert M., Granath T., Kaspar T., Maile R., Pujales Paradela R., Prieschl J., Wintzheimer S., Mandel K., Müller-Buschbaum K.
Tuning Magnetic and Photophysical Properties of Luminomagnetic Metal-Organic Framework Composites in an Inverse Core-Satellite Structure
In: ChemPlusChem (2022)
DOI: 10.1002/cplu.202200395

 

 

[89]    Wenderoth S., Bleyer G., Endres J., Prieschl J., Vogel N., Wintzheimer S., Mandel K.
Spray-dried photonic balls with a disordered/ordered hybrid structure for shear stress indication
In: Small (2022)
DOI: 10.1002/smll.202203068

 

 

[88]    Miller F., Wenderoth S., Wintzheimer S., Mandel K.
Rising like a phoenix from the ashes: Fire-proof magnetically retrievable supraparticles with an optical fingerprint for post-mortem identification of products
In: Advanced Optical Materials (2022)
DOI: 10.1002/adom.202201642

 

 

[87]    Zhou H., Pujales Paradela R., Groppe P., Wintzheimer S., Mandel K.
Tuning the morphology of spray-dried supraparticles: effects of building block size and concentration
In: Particle and Particle Systems Characterizations (2022)
DOI: 10.1002/ppsc.202200127

 

 

[86]    Groppe P., Wintzheimer S., Eigen A., Gaß H., Halik M., Mandel K.
Real-time Monitoring of Magnetic Nanoparticles-assisted Nanoplastic Removal from Water
In: RSC Environmental Science: Nano (2022), just accepted
DOI: 10.1039/D2EN00131D

 

 

[85]    Yoon S., Fett B., Frebel A., Kroisl S., Herbig B., Widenmeyer M., Balke B., Sextl G., Mandel K., Anke Weidenkaff
Sb-substituted Cs2AgBiBr6 – as much as it could be? – Influence of synthesis methods on Sb-substituiton level in Cs2AgBiBr6
In: Energy Technology (2022)
DOI: 10.1002/ente.202200197

 

 

[84]    Reichstein J., Müssig S., Bauer H., Wintzheimer S., Mandel K.
Recording Temperature with Magnetic Supraparticles
In: Advanced  Materials (2022)
DOI: 10.1002/adma.202202683

 

 

[83]   Lange S., Fett B., Hähnel A., Müller A., Naumann V., Sextl G., Mandel K., Hagendorf C.
Thin film formation of wet chemically deposited NiOx and parasitic oxides at NiOx/Si interfaces during high-temperature annealing of selective contacts in perovskite/Si tandem solar cells
In: Solar Energy Materials & Solar Cells (2022)
DOI: 10.1016/j.solmat.2022.111724

 

 

[82]    Wenderoth S., Müssig S., Prieschl J., Genin E., Heuzé K., Fidler F., Haddad D., Wintzheimer S., Mandel K.
Optically sensitive and magnetically identifiable supraparticles as indicators of surface abrasion
In: Nano Letters (2022)
DOI: 10.1021/acs.nanolett.1c04773

 

 

[81]    Wenderoth S., Eigen A., Wintzheimer S., Prieschl J., Hirsch A., Halik M., Mandel K.
Supraparticles with a mechanically triggerable color-change-effect to equip coatings with the ability to report damage
In: Small (2022)
DOI: 10.1002/smll.202107513

 

 

[80]    Reichstein J., Schötz S., Macht M., Maisel S., Stockinger N., Cuadrado Collados C., Schubert K, Blaumeiser D., Wintzheimer S., Görling A., Thommes M., Zahn D., Libuda J., Bauer T., Mandel K.
Supraparticles for Bare-Eye H2 Indication and Monitoring: Design, Working Principle, and Molecular Mobility
In: Advanced Functional Materials (2022)
DOI:10.1002/adfm.202112379

 

 

[79]     Miller F., Reichstein J., Mandel K.
Hybrid inorganic-organic luminescent supraparticle taggants with switchable dual-level ID
In: Advanced Optical Materials (2022)
DOI: 10.1002/adom.202102520 

 

 

[78]     Granath T., Mandel K., Löbmann P.
The Significant Influence of the pH Value on Citrate Coordination upon Modification of Superparamagnetic Iron Oxide Nanoparticles
In: Particle and Particle Systems Characterization (2022)
DOI: 10.1002/ppsc.202100279

 

 

[77]    Müssig S., Reichstein J., Miller F., Mandel K.
Colorful Luminescent Magnetic Supraparticles: Expanding the Applicability, Information Capacity and Security of Micron-scaled Identification Taggants by Dual-Spectral Encoding
In: Small (2022)
DOI: 10.1002/smll.202107511

 

 

[76]    Pujales Paradela R., Granath T., Seufert M. T., Kasper T., Müller-Buschbaum K., Mandel K.
Luminescent magnets: hybrid supraparticles of a lanthanide-based MOF and ferromagnetic iron oxide by assembly in a droplet via spray-drying
In: Journal of Materials Chemistry C (2022)
DOI: 10.1039/D1TC04867H

2021

 

[75]    Müssig S., Koch V. M., Cuadrado C. C., Bachmann J., Thommes M., Barr M. K. S., Mandel K.
Spray-Drying and Atomic Layer Deposition: Complementary Tools toward Fully Orthogonal Control of Bulk Composition and Surface Identity of Multifunctional Supraparticles
In: Small Methods (2021)
DOI: 10.1002/smtd.202101296

 

 

[74]     Wolf A., Lorrmann H., Flegler A., Wolf A., Guerfi A., Mandel K., Giffin G. A.
Abrasive blasting of lithium metal surfaces yields clean and 3D structured lithium metal anodes with enhanced properties
In: Energy Technology (2021)
DOI: 10.1002/ente.202100455

 

 

[73]     Reichstein J., Miller F., Wintzheimer S., Mandel K.
Communicating Particles: Identification Taggant and Temperature Recorder in One Single Supraparticle
In: Advanced Functional Materials (2021)
DOI: 10.1002/adfm.202104189

 

 

[72]     Granath T., Loebmann P., Mandel K.
Overcoming the Inhibition Effects of Citrate: Precipitation of Ferromagnetic Magnetite Nanoparticles with Tunable Morphology, Magnetic Properties and Surface Charge
via Ferrous Citrate Oxidation
In: Particle and Particle Systems Characterization (2021)
DOI: 10.1002/ppsc.202100098

 

 

[71]     Müssig S., Reichstein J., Prieschl J., Wintzheimer S., Mandel K.
A Single Magnetic Particle with Nearly Unlimited Encoding Options
In: Small (2021)
DOI: 10.1002/smll.202101588

 

 

[70]     Müssig S., Kuttich B., Fidler F., Haddad D., Wintzheimer S., Kraus T., Mandel K.
Reversible magnetism switching of iron oxide nanoparticle dispersions
by controlled agglomeration
In: Nanoscale Advances 3 (2021), p. 2822-2829
DOI: 10.1039/d1na00159k

 

 

[69]     Oppmann M., Wenderoth S., Ballweg T., Schug B., Mandel K.
A Simple Model Setup Using Spray-Drying Principles and Fluorescent Silica Nanoparticles to Evaluate the Efficiency of Facemask Materials in Terms of Virus Particle Retention
In: Advanced Materials Technologies (2021)
DOI: 10.1002/admt.202100235

 

 

[68]     Wolf A., Flegler A., Prieschl J., Stuebinger T., Witt W., Seiser F., Vinnay T., Sinn T., Gleiß M., Nirschl H., Mandel K.
Centrifugation based separation of lithium iron phosphate (LFP) and carbon black for lithium-ion battery recycling
In: Chemical Engineering and Processing 160 (2021), Article No.: 108310
DOI: 10.1016/j.cep.2021.108310

 

 

[67]      Wintzheimer S., Reichstein J., Groppe P., Wolf A., Fett B., Zhou H., Pujales Paradela R., Miller F., Müssig S., Wenderoth S., Mandel K.
Supraparticles for Sustainability
In: Advanced Functional Materials (2021)
DOI: 10.1002/adfm.202011089

 

 

[66]     Naya R.S., Stepanenko V., Mandel K., Beuerle F.
Modulation of Crystallinity and Optical Properties in Composite Materials Combining Iron Oxide Nanoparticles and Dye-Containing Covalent Organic Frameworks
In: Organic Materials (2021)
DOI: 10.1055/s-0040-1722655

 

 

[65]     Granath T., Loebmann P., Mandel K.
Oxidative Precipitation as a Versatile Method to Obtain Ferromagnetic Fe3O4 Nano- and Mesocrystals Adjustable in Morphology and Magnetic Properties
In: Particle & Particle Systems Characterization (2021)
DOI: 10.1002/ppsc.202000307

2020

 

[64]     Miller F., Wintzheimer S., Prieschl J., Strauss V., Mandel K.
A Supraparticle-Based Five-Level-Identification Tag That Switches Information Upon Readout
In: Advanced Optical Materials (2020)
DOI: 10.1002/adom.202001972

 

 

[63]      Seuffert MT., Wintzheimer S., Oppmann M., Granath T., Prieschl J., Alrefai A., Holdt HJ., Müller-Buschbaum K., Mandel K.
An all white magnet by combination of electronic properties of a white light emitting MOF with strong magnetic particle systems
In: Journal of Materials Chemistry C 8 (2020), p. 16010-16017
DOI: 10.1039/d0tc03473h

 

 

[62]     Wenderoth S., Granath T., Prieschl J., Wintzheimer S., Mandel K.
Abrasion Indicators for Smart Surfaces Based on a Luminescence Turn‐On Effect in Supraparticles
In: Advanced Photonics Research 1 (2020), p. 2000023
DOI: 10.1002/adpr.202000023

 

 

[61]      Tschoepe A., Wyrwoll M., Schneider M., Mandel K., Franzreb M.
A magnetically induced fluidized-bed reactor for intensification of electrochemical reactions
In: Chemical Engineering Journal 385 (2020), Article No.: 123845
DOI: 10.1016/j.cej.2019.123845

 

 

 

[60]     Schneider M., Tschoepe A., Hanselmann D., Ballweg T., Cehermann C., Franzreb M., Mandel K.
Adsorber Particles with Magnetically-Supported Improved Electrochemical Conversion Behavior for Waste Water Treatment Processes
In: Particle & Particle Systems Characterization 37 (2020), Article No.: 1900487
DOI: 10.1002/ppsc.201900487

 

 

[59]     Tschöpe A., Heikenwälder S., Schneider M., Mandel K., Franzreb M.
Electrical conductivity of magnetically stabilized fluidized-bed electrodes – Chronoamperometric and impedance studies
In: Chemical Engineering Journal 396 (2020), Article No.: 125326
DOI: 10.1016/j.cej.2020.125326

 

 

[58]     Miller F., Wintzheimer S., Reuter T., Groppe P., Prieschl J., Retter M., Mandel K.
Luminescent Supraparticles Based on CaF2-Nanoparticle Building Blocks as Code Objects with Unique IDs
In: ACS Applied Nano Materials 3 (2020), p. 734-741
DOI: 10.1021/acsanm.9b02245

 

 

[57]     Pannek C., Vetter T., Oppmann M., Weber C., Eberhardt A., Dold M., Bauersfeld ML., Henfling M., Trupp S., Schug B., Woellenstein J., Mandel K.
Highly sensitive reflection based colorimetric gas sensor to detect CO in realistic fire scenarios
In: Sensors and Actuators B-Chemical 306 (2020), Article No.: 127572
DOI: 10.1016/j.snb.2019.127572

2019

 

[56]     Wintzheimer S., Miller F., Prieschl J., Retter M., Mandel K.
Supraparticles with silica protection for redispersible, calcined nanoparticles
In: Nanoscale Advances 1 (2019), p. 4277-4281
DOI: 10.1039/c9na00442d

 

 

[55]     Wintzheimer S., Müssig S., Wenderoth S., Prieschl J., Granath T., Fidler F., Haddad D., Mandel K.
Hollow Superparamagnetic Nanoparticle-Based Microballoons for Mechanical Force Monitoring by Magnetic Particle Spectroscopy
In: ACS Applied Nano Materials 2 (2019), p. 6757-6762
DOI: 10.1021/acsanm.9b01693

 

 

[54]     Wintzheimer S., Oppmann M., Dold M., Pannek C., Bauersfeld ML., Henfling M., Trupp S., Schug B., Mandel K.
Indicator Supraparticles for Smart Gasochromic Sensor Surfaces Reacting Ultrafast and Highly Sensitive
In: Particle & Particle Systems Characterization 36 (2019), Article No.: 1900254
DOI: 10.1002/ppsc.201900254

 

 

[53]     Müssig S., Granath T., Schembri T., Fidler F., Haddad D., Hiller KH., Wintzheimer S., Mandel K.
Anisotropic Magnetic Supraparticles with a Magnetic Particle Spectroscopy Fingerprint as Indicators for Cold-Chain Breach
In: ACS Applied Nano Materials 2 (2019), p. 4698-4702
DOI: 10.1021/acsanm.9b00977

 

 

[52]     Muendlein M., Schug B., Wintzheimer S., Mandel K.
Facile synthesis of magnetic nanoparticles optimized towards high heating rates upon magnetic induction
In: Journal of Magnetism and Magnetic Materials 488 (2019), Article No.: 165350
DOI: 10.1016/j.jmmm.2019.165350

 

 

[51]     Müssig S., Fidler F., Haddad D., Hiller KH., Wintzheimer S., Mandel K.
Supraparticles with a Magnetic Fingerprint Readable by Magnetic Particle Spectroscopy: An Alternative beyond Optical Tracers
In: Advanced Materials Technologies 4 (2019), Article No.: 1900300
DOI: 10.1002/admt.201900300

 

 

[50]     Schneider M., Ballweg T., Gross L., Cellermann C., Sanchez-Sanchez A., Fierro V., Ceizard A., Mandel K.
Magnetic Carbon Composite Particles for Dye Adsorption from Water and their Electrochemical Regeneration
In: Particle & Particle Systems Characterization 36 (2019), Article No.: 1800537
DOI: 10.1002/ppsc.201800537

 

 

Cover[49]     Wintzheimer S., Reichstein J., Wenderoth S., Hasselmann S., Oppmann M., Seuffert MT., Mueller-Buschbaum K., Mandel K.
Expanding the Horizon of Mechanochromic Detection by Luminescent Shear Stress Sensor Supraparticles
In: Advanced Functional Materials 29 (2019), Article No.: 1901193
ISSN: 1616-301X
DOI: 10.1002/adfm.201901193

 

 

[48]     Wintzheimer S., Granath T., Eppinger A., Goncalves MR., Mandel K.
A code with a twist: Supraparticle microrod composites with direction dependent optical properties as anti-counterfeit labels
In: Nanoscale Advances 1 (2019), p. 1510-1515
ISSN: 2516-0230
DOI: 10.1039/c8na00334c

 

 

[47]     Celzard A., Pasc A., Schaefer S., Mandel K., Ballweg T., Li S., Medjandi G., Nicolas ., Fierro .
Floating hollow carbon spheres for improved solar evaporation
In: Carbon 146 (2019), p. 232-247
DOI: 10.1016/j.carbon.2019.01.101

 

 

[46]     Oppmann M., Wozar M., Reichstein J., Mandel K.
Reusable Superparamagnetic Raspberry-Like Supraparticle Adsorbers as Instant Cleaning Agents for Ultrafast Dye Removal from Water
In: ChemNanoMat 5 (2019), p. 230-240
DOI: 10.1002/cnma.201800490

2018

 

[45]     Stauch C., Süß S., Luxenhofer R., Binks BP., Segets D., Mandel K.
Quantifying Surface Properties of Silica Particles by Combining Hansen Parameters and Reichardt’s Dye Indicator Data
In: Particle & Particle Systems Characterization 35 (2018), Article No.: 1800328
DOI: 10.1002/ppsc.201800328

 

 

[44]     Rott E., Nouri M., Meyer C., Minke R., Schneider M., Mandel K., Drenkova-Tuhtan A.
Removal of phosphonates from synthetic and industrial wastewater with reusable magnetic adsorbent particles
In: Water Research 145 (2018), p. 608-617
DOI: 10.1016/j.watres.2018.08.067

 

 

[43]     Wintzheimer S., Szczerba W., Buzanich AG., Kashiwaya S., Klein A., Jaegermann W., Toupance T., Shmeliov A., Nicolosi V., Heuze K., Mandel K., Dembski S.
Discovering the Determining Parameters for the Photocatalytic Activity of TiO2 Colloids Based on an Anomalous Dependence on the Specific Surface Area
In: Particle & Particle Systems Characterization 35 (2018), Article No.: 1800216
DOI: 10.1002/ppsc.201800216

 

 

[42]     Stumm C., Szielasko K., Granath T., Stauch C., Mandel K.
Raspberry-like supraparticles from nanoparticle building-blocks as code-objects for hidden signatures readable by terahertz rays
In: Materials Today Communications 16 (2018), p. 174-177
DOI: 10.1016/j.mtcomm.2018.05.011

 

 

[41]     Stauch C., Ballweg T., Haas KH., Jaeger R., Stiller S., Shmeliov A., Nicolosi V., Malebennur S., Woetzel J., Beiner M., Luxenhofer R., Mandel K.
Silanization of Silica Nanoparticles and Their Processing as Nanostructured Micro-Raspberry Powders—A Route to Control the Mechanical Properties of Isoprene Rubber Composites
In: Polymer Composites 40 (2019), p. E732-E743
DOI: 10.1002/pc.24980

 

 

[40]     Wintzheimer S., Granath T., Oppmann M., Kister T., Thai T., Kraus T., Vogel N., Mandel K.
Supraparticles: Functionality from Uniform Structural Motifs
In: ACS nano 12 (2018), p. 5093-5120
DOI: 10.1021/acsnano.8b00873

 

 

[39]     Stauch C., Hobbs C., Shmeliov A., Nicolosi V., Ballweg T., Luxenhofer R., Mandel K.
Colloidal Core–Satellite Supraparticles via Preprogramed Burst of Nanostructured Micro-Raspberry Particles
In: Particle & Particle Systems Characterization 35 (2018), Article No.: 1800096
DOI: 10.1002/ppsc.201800096

 

 

[38]     Koch I., Granath T., Hess S., Ueltzhoeffer T., Deumel S., Caballero CIJ., Ehresmann A., Holzinger D., Mandel K.:
Smart Surfaces: Magnetically Switchable Light Diffraction through Actuation of Superparamagnetic Plate-Like Microrods by Dynamic Magnetic Stray Field Landscapes
In: Advanced Optical Materials 6 (2018), Article No.: 1800133
DOI: 10.1002/adom.201800133

 

 

[37]     Oppmann M., Miller F., Thuerauf S., Groppe P., Prieschl J., Stauch C., Mandel K.
Core-Satellite Supraparticles to Ballistically Stamp Nanostructures on Surfaces
In: ACS Applied Materials and Interfaces 10 (2018), p. 14183-14192
DOI: 10.1021/acsami.8b02404

 

 

[36]     Ballweg T., Von Daake H., Hanselmann D., Stephan D., Mandel K., Sextl G.
Versatile triggered substance release systems via a highly flexible high throughput encapsulation technique
In: Applied Materials Today 11 (2018), p. 231-237
DOI: 10.1016/j.apmt.2018.02.010

 

 

[35]     Schug B., Mandel K., Schottner G., Shmeliov A., Nicolosi V., Baese R., Foerthner S., Pietschmann B., Biebl M., Sextl G.
Revealing the working principle of sodium trimetaphosphate as state of the art anti-creep agent in gypsum plaster
In: Cement and Concrete Research 107 (2018), p. 182-187
DOI: 10.1016/j.cemconres.2018.02.025

 

 

[34]     Hobbs C., Jaskaniec S., Mccarthy EK., Downing C., Opelt K., Guth K., Shmeliov A., Mourad MCD., Mandel K., Nicolosi V.
Structural transformation of layered double hydroxides: an in situ TEM analysis
In: npj 2D Materials and Applications 2 (2018), Article No.: 4
DOI: 10.1038/s41699-018-0048-4

 

2017

[33]     Flegler A., Hartmann S., Settelein J., Mandel K., Sextl G.
Screen printed bifunctional gas diffusion electrodes for aqueous metal-air batteries: Combining the best of the catalyst and binder world
In: Electrochimica Acta 258 (2017), p. 495-503
DOI: 10.1016/j.electacta.2017.11.088

 

 

[32]     Szczerba W., Schneider M., Zukrowski J., Buzanich AG., Riesemeier H., Sikora M., Mandel K.
Spectroscopic Study of the Role of Metal Ions in the Adsorption Process of Phosphate in Nanoscaled Adsorbers Based on Metal (Zn/Fe/Zr) Oxyhydroxides
In: Journal of Physical Chemistry C 121 (2017), p. 25033-25042
DOI: 10.1021/acs.jpcc.7b04773

 

 

[31]     Wehner T., Seuffert MT., Sorg JR., Schneider M., Mandel K., Sextl G., Mueller-Buschbaum K.
Composite materials combining multiple luminescent MOFs and superparamagnetic microparticles for ratiometric water detection
In: Journal of Materials Chemistry C 5 (2017), p. 10133-10142
DOI: 10.1039/c7tc03312e

 

 

Cover[30]     Stauch C., Spaeth S., Ballweg T., Luxenhofer R., Mandel K.
Nanostructured micro-raspberries from superparamagnetic iron oxide nanoparticles: Studying agglomeration degree and redispersibility of nanoparticulate powders via magnetisation measurements
In: Journal of Colloid and Interface Science 505 (2017), p. 605-614
DOI: 10.1016/j.jcis.2017.06.047

 

 

[29]     Schug B., Mandel K., Schottner G., Shmeliov A., Nicolosi V., Baese R., Pietschniann B., Blebl M., Sextl G.
A mechanism to explain the creep behavior of gypsum plaster
In: Cement and Concrete Research 98 (2017), p. 122-129
DOI: 10.1016/j.cemconres.2017.04.012

 

 

[28]     Flegler A., Muessig S., Prieschl J., Mandel K., Sextl G.
Towards core-shell bifunctional catalyst particles for aqueous metal-air batteries: NiFe-layered double hydroxide nanoparticle coatings on gamma-MnO2 microparticles
In: Electrochimica Acta 231 (2017), p. 216-222
DOI: 10.1016/j.electacta.2017.01.179

 

 

[27]     Mandel K., Granath T., Wehner T., Rey M., Stracke W., Vogel N., Sextl G., Mueller-Buschbaum K.
Smart Optical Composite Materials: Dispersions of Metal-Organic Framework@Superparamagnetic Microrods for Switchable Isotropic-Anisotropic Optical Properties
In: Acs Nano 11 (2017), p. 779-787
DOI: 10.1021/acsnano.6b07189

 

 

[26]     Schneider M., Drenkova-Tuhtan A., Szczerba W., Gellermann C., Meyer C., Steinmetz H., Mandel K., Sextl G.
Nanostructured ZnFeZr oxyhydroxide precipitate as efficient phosphate adsorber in waste water: understanding the role of different material-building-blocks
In: Environmental Science: Nano 4 (2017), p. 180-190
DOI: 10.1039/C6EN00507A

 

 

[25]     Stauch C., Ballweg T., Stracke W., Luxenhofer R., Mandel K.
Burstable nanostructured micro-raspberries: Towards redispersible nanoparticles from dry powders
In: Journal of Colloid and Interface Science 490 (2017), p. 401-409
DOI: 10.1016/j.jcis.2016.11.047

 

 

[24]     Drenkova-Tuhtan A., Schneider M., Franzreb M., Meyer C., Gellermann C., Sextl G., Mandel K., Steinmetz H.
Pilot-scale removal and recovery of dissolved phosphate from secondary wastewater effluents with reusable ZnFeZr adsorbent @ Fe3O4/SiO2 particles with magnetic harvesting
In: Water Research 109 (2017), p. 77-87
DOI: 10.1016/j.watres.2016.11.039

 

2016

[23]     Granath T., Sanchez-Sanchez A., Shmeliov A., Nicolosi V., Fierro V., Celzard A., Mandel K.
Hollow Superparamagnetic Microballoons from Lifelike, Self-Directed Pickering Emulsions Based on Patchy Nanoparticles
In: ACS nano 10 (2016), p. 10347-10356
DOI: 10.1021/acsnano.6b06063

 

 

[22]     Szczerba W., Zukrowski J., Przybylski M., Sikora M., Safonova O., Shmeliov A., Nicolosi V., Schneider M., Granath T., Oppmann M., Strasser M., Mandel K.
Pushing up the magnetisation values for iron oxide nanoparticles: Via zinc doping: X-ray studies on the particle’s sub-nano structure of different synthesis routes
In: Physical Chemistry Chemical Physics 18 (2016), p. 25221-25229
DOI: 10.1039/c6cp04221j

 

 

[21]     Flegler A., Schneider M., Prieschl J., Stevens R., Vinnayd T., Mandel K.
Continuous flow synthesis and cleaning of nano layered double hydroxides and the potential of the route to adjust round or platelet nanoparticle morphology
In: RSC Advances 6 (2016), p. 57236-57244
DOI: 10.1039/c6ra09553d

 

 

[20]     Szielasko K., Youssef A., Sporn D., Mandel K.
Fingerprint signatures based on nanomagnets as markers in materials for tracing and counterfeit protection
In: Journal of Nanoparticle Research 18 (2016), Article No.: 131
DOI: 10.1007/s11051-016-3443-9

 

 

[19]     Koch S., Kessler M., Mandel K., Dembski S., Heuze K., Hackenberg S.
Polycarboxylate ethers: The key towards non-toxic TiO2 nanoparticle stabilisation in physiological solutions
In: Colloids and Surfaces B: Biointerfaces 143 (2016), p. 7-14
DOI: 10.1016/j.colsurfb.2016.03.010

 

 

[18]     Wehner T., Mandel K., Schneider M., Sextl G., Mueller-Buschbaum K.
Superparamagnetic Luminescent MOF@Fe3O4/SiO2 Composite Particles for Signal Augmentation by Magnetic Harvesting as Potential Water Detectors
In: ACS Applied Materials and Interfaces 8 (2016), p. 5445-5452
DOI: 10.1021/acsami.5b11965

 

 

[17]     Bychanok D., Li S., Sanchez-Sanchez A., Gorokhov G., Kuzhir P., Ogrin FY., Pasc A., Ballweg T., Mandel K., Szczurek A., Fierro V., Celzard A.
Hollow carbon spheres in microwaves: Bio inspired absorbing coating
In: Applied Physics Letters 108 (2016), Article No.: 013701
DOI: 10.1063/1.4938537

 

 

[16]     Drenkova-Tuhtan A., Schneider M., Mandel K., Meyer C., Gellermann C., Sextl G., Steinmetz H.
Influence of cation building blocks of metal hydroxide precipitates on their adsorption and desorption capacity for phosphate in wastewater-A screening study
In: Colloids and Surfaces A-Physicochemical and Engineering Aspects 488 (2016), p. 145-153
DOI: 10.1016/j.colsurfa.2015.10.017

 

2015

[15]     Wintzheimer S., Spaeth S., Shmeliov A., Nicolosi V., Mandel K.
Air bubble promoted large scale synthesis of luminescent ZnO nanoparticles
In: Journal of Materials Chemistry C 3 (2015), p. 12430-12435
DOI: 10.1039/c5tc03107a

 

 

[14]     Ballweg T., Gellermann C., Mandel K.
Coatings with a Mole-hill Structure of Nanoparticle-Raspberry Containers for Surfaces with Abrasion-Refreshable Reservoir Functionality
In: ACS Applied Materials and Interfaces 7 (2015), p. 24909-24914
DOI: 10.1021/acsami.5b08380

 

[13]    Brede FA., Mandel K., Schneider M., Sextl G., Mueller-Buschbaum K.
Mechanochemical surface functionalisation of superparamagnetic microparticles with in situ formed crystalline metal-complexes: A fast novel core-shell particle formation method
In: Chemical Communications 51 (2015), p. 8687-8690
DOI: 10.1039/c5cc01961c

 

 

[12]    Mandel K., Strasser M., Granath T., Dembski S., Sextl G.
Surfactant free superparamagnetic iron oxide nanoparticles for stable ferrofluids in physiological solutions
In: Chemical Communications 51 (2015), p. 2863-2866
DOI: 10.1039/c4cc09277e

 

2014

[11]     Mandel K., Kolb C., Strasser M., Dembski S., Sextl G.:
Size controlled iron oxide nano octahedra obtained via sonochemistry and natural ageing
In: Colloids and Surfaces A-Physicochemical and Engineering Aspects 457 (2014), p. 27-32
DOI: 10.1016/j.colsurfa.2014.05.046

 

2013

[10]     Drenkova-Tuhtan A., Mandel K., Paulus A., Meyer C., Hutter F., Gellermann C., Sextl G., Franzreb M., Steinmetz H.:
Phosphate recovery from wastewater using engineered superparamagnetic particles modified with layered double hydroxide ion exchangers
In: Water Research 47 (2013), p. 5670-5677
DOI: 10.1016/j.watres.2013.06.039

 

 

[9]     Mandel K., Hutter F., Gellermann C., Sextl G.:
Reusable superparamagnetic nanocomposite particles for magnetic separation of iron hydroxide precipitates to remove and recover heavy metal ions from aqueous solutions
In: Separation and Purification Technology 109 (2013), p. 144-147
DOI: 10.1016/j.seppur.2013.03.002

 

 

[8]     Mandel K., Hutter F., Gellermann C., Sextl G.:
Stabilisation effects of superparamagnetic nanoparticles on clustering in nanocomposite microparticles and on magnetic behaviour
In: Journal of Magnetism and Magnetic Materials 331 (2013), p. 269-275
DOI: 10.1016/j.jmmm.2012.11.053

 

 

[7]     Mandel K., Drenkova-Tuhtan A., Hutter F., Gellermann C., Steinmetz H., Sextl G.:
Layered double hydroxide ion exchangers on superparamagnetic microparticles for recovery of phosphate from waste water
In: Journal of Materials Chemistry A 1 (2013), p. 1840-1848
DOI: 10.1039/c2ta00571a

 

2012

[6]     Mandel K., Hutter F., Gellermann C., Sextl G.:
Modified superparamagnetic nanocomposite microparticles for highly selective Hg II or Cu II separation and recovery from aqueous solutions
In: ACS Applied Materials and Interfaces 4 (2012), p. 5633-5642
DOI: 10.1021/am301910m

 

 

[5]     Mandel K., Hutter F.:
The magnetic nanoparticle separation problem
In: Nano Today 7 (2012), p. 485-487
DOI: 10.1016/j.nantod.2012.05.001

 

 

[4]     Mandel K., Szczerba W., Thuenemann AF., Riesemeier H., Girod M., Sextl G.:
Nitric acid-stabilized superparamagnetic iron oxide nanoparticles studied with X-rays
In: Journal of Nanoparticle Research 14 (2012), Article No.: 1066
DOI: 10.1007/s11051-012-1066-3

 

 

[3]     Mandel K., Dillon F., Koos AA., Aslam Z., Cullen F., Bishop H., Crossley A., Grobert N.:
Customised transition metal oxide nanoparticles for the controlled production of carbon nanostructures
In: RSC Advances 2 (2012), p. 3748-3752
DOI: 10.1039/c2ra01324j

 

2011

[2]     Mandel K., Hutter F., Gellermann C., Sextl G.:
Synthesis and stabilisation of superparamagnetic iron oxide nanoparticle dispersions
In: Colloids and Surfaces A-Physicochemical and Engineering Aspects 390 (2011), p. 173-178
ISSN: 0927-7757
DOI: 10.1016/j.colsurfa.2011.09.024

 

 

[1]     Mandel K., Dillon F., Koos AA., Aslam Z., Jurkschat K., Cullen F., Crossley A., Bishop H., Moh K., Cavelius C., Arzt E., Grobert N.:
Facile, fast, and inexpensive synthesis of monodisperse amorphous Nickel-Phosphide nanoparticles of predefined size
In: Chemical Communications 47 (2011), p. 4108-4110
ISSN: 1359-7345
DOI: 10.1039/c0cc02769c

Patent applications

There are currently 15 patent applications on all topics of the group. For further details, please contact Karl Mandel directly.

Book chapters

Flegler A., Koch S., Schneider M., Gellermann C.,  Mandel K.*
Tailored nanoparticles by wet chemical particle technology: from lab to pilot scale
In: Handbook of Nanomaterials for Industrial Applications (2018), Chaudhery Mustansar Hussain (Ed.), Elsevier, Amsterdam,
ISBN: 978-0-12-813351-4

Mandel K.*
Complex superparamagnetic particle architectures and their versatile applicability
In: Produktgestaltung in der Partikeltechnologie Band 8 (2017), Ulrich Teipel, Michael Türk (Ed.), Fraunhofer Verlag, Stuttgart
(ISBN 978-3-8396-1194-4)

Group posters

Groppe P., Wintzheimer S., Eigen A., Gaß H., Halik M., Mandel K.
Real-time Monitoring of Magnetic Nanoparticles-assisted Nanoplastic Removal from Water
12th International Colloids Conference 2023 (Palma, Spain)

Reichstein J., Miller F., Witzheimer S., Mandel K.
Communicating supraparticles: smart additives to foster materials’ intelligence
Particle Based Materials Symposium 2022 (Erlangen, Germany)

Groppe P., Wintzheimer S., Eigen A., Gaß H., Halik M., Mandel K.
Real-time Monitoring of Magnetic Nanoparticles-assisted Nanoplastic Removal from Water
Particle Based Materials Symposium 2022 (Erlangen, Germany)

Wolf A., Flegler A., Stübinger T., Witt W., Seiser F., Vinnay T., Sinn T.,Gleiß M., Mandel K.
A novel centrifugation-based low temperature recycling strategy for lithium-ion battery active materials
Batterieforum Deutschland 2020 (Berlin, Germany)

Müssig S., Fidler F., Haddad D., Wintzheimer S., Mandel K.
A universal marking technology: Supraparticles with magnetic fingerprints readable by magnetic particle spectroscopy
Particle Based Materials Symposium 2019 (Ulm, Germany)

Wenderoth S., Reichstein J., Wintzheimer S., Mandel K.
Mechanochromic shear sensors based on supraparticles
Particle Based Materials Symposium 2019 (Ulm, Germany)

Müssig S., Miller F., Wenderoth S., Reuter T., Reichstein J., Groppe P., Prieschl J., Granath T., Wintzheimer S., Mandel K.
NANO-ID: Nanoparticle based supraparticles with a unique fingerprint as markers and tracers
Chem-SyStM 2018 (Würzburg, Germany)

Granath T., Wehner T., Koch I., Rey M., Eppinger A., Holzinger D., Wintzheimer S., Ehresmann A., Vogel N., Müller-Buschbaum K., Mandel K.
Magnetic supraparticle microrods from superparamagnetic nanoparticles:
a magnetically switchable material with versatile optical properties
Chem-SyStM 2018 (Würzburg, Germany)
Best Poster Award

Schug B., Stauch C.,Oppmann M., Mandel K.
Supraparticles from spray-dried nanoparticles as interactive agents for surfaces
Conference on Coatings on Glass and Plastics 2018 (Würzburg, Germany)
Best Poster Award

Stauch C., Ballweg T., Stracke W., Späth S., Luxenhofer R., Mandel K.
Nanostructured micro-raspberry powders: towards easily redispersible nanoparticles
Symposium “Produktgestaltung in der Partikeltechnologie” 2016 (Karlsruhe, Germany)

Mandel K.
Complex nanostructured particles by design
The Particle Technology Group (Karl Mandel)
Chem-SyStM 2016 (Würzburg, Germany)

Mandel K.
Complex nanostructured composite microparticles from nanomagnets
The Particle Technology Group (Karl Mandel)
PARTEC 2016 (Nürnberg, Germany)

Straßer M., Dembski S., Mandel K., Schrauth J., Haddad D., Ahrens B., Schweizer S., Walles H.
Multifunctional Nanoparticles for Medical Imaging
Forum Life Science 2015 (München, Germany)

Straßer M., Dembski S., Mandel K., Schrauth J., Haddad D., Ahrens B., Schweizer S., Walles H.
Multifunctional Nanoparticles for Medical Imaging
BioNanoMed 2015 (Graz, Austria)

Straßer M., Dembski S., Mandel K., Schrauth J., Haddad D., Ahrens B, Schweizer S., Walles H.
Multifunctional Nanoparticles for Medical Imaging
4th International Conference Strategies in Tissue Engineering 2015 (Würzburg, Germany)

Straßer M., Mandel K., Kolb C., Dembski S.
Size controlled iron oxide nano octahedra obtained via sonochemistry and natural ageing
Nanobio Europe Conference 2014 (Münster, Germany)

Mandel K., Hutter F., Gellermann C., Sextl G.
Superparamagnetic Magnetite Nanoparticles for Ferrofluids and Magnetic Beads
Chem-SyStM 2012 (Würzburg, Germany)

Mandel K., Hutter F., Gellermann C., Sextl G.
Superparamagnetic Magnetite Nanoparticles for Ferrofluids and Magnetic Beads
Junior EuroMat 2012 (Lausanne, Switzerland)

Mandel K., Dillon F., Koos A., Grobert N.
Fast and simple size controlled synthesis of metallic catalyst nanoparticles for carbon nanotube growth
NanoteC10 2010 (Oxford, UK)

Talks by Karl Mandel

Talk
Mandel K. in tandem with Tobias Kraus
Particle-based information and reversibility in materials for sustainable products
Part 1: Communicating particles to equip materials with information
Partec, Nürnberg, Germany, September 2023

Talk (invited)
Mandel K.
The role of intra-supraparticle interfaces for functionality
Ostwald Colloquium 2023, Darmstadt, Germany, September 2023

Talk
Mandel K. in tandem with Tobias Kraus
Particle-based information and reversibility in materials for sustainable products
Part 1: Communicating particles to equip materials with information
GDCh Wissenschaftsforum Chemie, Leipzig, Germany, September 2023

Talk
Mandel K.
Wer rettet unseren Planeten? – Wir Chemikerinnen und Chemiker machen das!
Speech at graduation ceremony, Erlangen, Germany, July 2023

Talk
Mandel K.
Supraparticles
Inaugural lecture at the Chemistry and Pharmacy Day 2023, Erlangen, Germany, April 2023

Talk (invited)
Mandel K.
Supraparticles – new functionalities from assembled nano building blocks
Guest speaker CRC 1452 seminar, FAU, Erlangen, Germany, February 2023

Talk (invited)
Mandel K. in tandem with Groppe P.
Controlled synthesis of functional materials with the new Büchi spray-dryer S-300
Büchi webinar, online; February 2023

Talk (invited)
Mandel K.
Supraparticles – interactive systems from assembled nano building blocks
Albert-Ludwigs-University Freiburg, Germany, January 2023

Talk (invited)
Mandel K.
Functional, “communicating” supraparticles via forced assembly of nano building blocks
Max Planck-Institute of Colloids and Interfaces, Golm, Germany, December 2022

Talk (and session chair)
Mandel K.
Inductively heatable protective films to combat COVID-19
Corona Crisis and Beyond – Perspectives for Science, Scholarship and Society
VolkswagenStiftung, Hannover, Germany, December 2022

Talk (Featured talk; invited; session chair)
Mandel K.
Functional, “communicating” supraparticles via forced assembly of nano building blocks
Seventh International Conference on Multifunctional, Hybrid and Nanomaterials, Genova, Italy, October 2022

Talk (Highlight lecture, invited)
Mandel K.
Functional supraparticles from nano building blocks: enabling recycling applications
and a more sustainable use of materials
MSE, Darmstadt, Germany, September 2022

Talk
Mandel K.
Functional, “communication” supraparticles
21st Conference on Inorganic chemistry, Marburg, Germany, September 2022

Talk
Mandel K.
Spray-drying as a versatile tool to create complex and highly functional supraparticle architectures on the fly via forced assembly
ACS fall meeting 2022, Chicago / hybrid / online, August 2022

Talk
Mandel K.
Supraparticles for Sustainability
ACS fall meeting 2022, Chicago / hybrid / online, August 2022

Talk
Mandel K.
Functional supraparticles that are able to communicate their status
ACS fall meeting 2022, Chicago / hybrid / online, August 2022

Talk (invited)
Mandel K.
Functional supraparticles via spray-drying
Helmholtz Institute Erlangen-Nürnberg for Renewable Energy, Erlangen, June 2022

Talk
Mandel K.
Intelligente Partikel auf Basis von Rost & Sand – und wie diese Recycling möglich und Wasserstoff sicherer machen
Lange Nacht der Wissenschaften, Erlangen, May 2022

Talk (invited)
Mandel K.
Fingerprint-ID für die Kreislaufwirtschaft oder: Wie wir kleinste Objekte intelligent machen
BMBF Bürgerforum, Ingolstadt, May 2022

Talk (invited)
Mandel K.
Supraparticles by forced-assembly using spray-drying – en route towards communicating particles
Institut Català de Nanociència i Nanotecnologia (Group of Prof. Daniel Maspoch), Barcelona, Spain (online). May 2022

Talk
Mandel K.
“Communicating particles” for sustainability
30th ATC Industrial Inorganic Chemistry Conference, Frankfurt, Germany, February 2022

Talk (Plenary, invited)
Mandel K.
Nano 2.0: Supraparticles – and how these make materials smart and contribute to sustainability
Mendeleev 2021, St. Petersburg (hybrid), September 2021

Talk
Mandel K.
Communicating particles for sustainability
GDCh Science Forum Chemistry (Wissenschaftsforum Chemie), online, August 2021

Talk (Keynote)
Mandel K.
Supraparticles for sustainability – a fundamental overview
KIC SafeVulca Workshop, online, April 2021

Talk
Mandel K.
Supraparticles – new functionalities via assembly of long known colloidal building blocks to complex particulate entities
10th International Colloids Conference, online, December 2020

Talk
Mandel K.
Advanced materials by “nano 2.0”
Spray-drying of nanoparticles to assemble supraparticles with unique properties
Büchi webinar, online, November 2020

Talk
Mandel K.
Functional supraparticles – based on iron oxide and silica nanoparticles
Abschlusskolloquium Habilitationsverfahren
Julius-Maximilians-University, Würzburg, Germany, March 2020

Talk
Mandel K.
Supraparticles: new functionalitites from building complex entitites using colloidal building blocks
29th ATC Industrial Inorganic Chemistry Conference,
Frankfurt, Germany, February 2020

Talk (invited)
Mandel K.
Supraparticles by spray-drying
Hiroshima University, Hiroshima, Japan, January 2020

Talk
Mandel K.
“Nanotechnology 2.0”:  Generating supraparticles via spray-drying
Büchi, Flawil, Switzerland, January 2020

Talk (invited)
Mandel K.
Supraparticles – particles, made from particles, with unexpected functionalitites
AC-Kolloquium, Universität Leipzig, Leipzig, Germany, December 2019

Talk (invited)
Mandel K.
More than nano: Supraparticulate systems
Fraunhofer Nano Allianz meeting, Würzburg, Germany, November 2019

Talk (invited, plenary)
Mandel K.
Particle technology from lab to pilot scale and nanotechnology 2.0 with supraparticles
Nanotechnology crossing borders, Hasselt, Belgium, September 2019

Talk
Mandel.K
The NANO-ID project
BMBF NanoMatFutur Netzwerktreffen, Saarbrücken, Germany, September 2019

Talk
Mandel K.
Supraparticles – there is plenty of room at the supra-nano-level
6th NanoToday conference, Lissbon, Portugal, June 2019

Talk
Mandel K.
Nanostructured micro-raspberry supraparticles with triggerable burst behavior to create polymer composites and smart coatings
Netzwerktreffen Süddeutsches Kunststoffzentrum, Würzburg, Germany, May 2019

Talk (invited)
Mandel K.
From classical particle technology to supraparticles
Fraunhofer IKTS, Dresden, Germany, April 2019

Talk
Mandel K.
Supraparticles – new functionalities with long-known nanoparticle building blocks
ADUC, Koblenz, Germany, March 2019

Talk (invited)
Mandel K.
Supraparticles: Particles made from nano building blocks and the role of interfaces in these complex entities
ProcessNet-Fachgruppenjahrestreffen Grenzflächenbestimmte Systeme und Prozesse, Bamberg, Germany, March 2019

Talk (invited)
Mandel K.
Supraparticles – there is plenty of room at the supra-nano-level
TU Ilmenau, Ilmenau, Germany, December 2018

Talk (invited)
Mandel K.
Supraparticles – there is plenty of room at the supra-nano-level
For the board of trustees at the Fraunhofer ISC, Würzburg, Germany, November 2018

Talk (invited)
Mandel K.
Particle Technology in Würzburg – Colloidal engineering and supraparticle research
Dechema Fachgruppe Nanotechnologie, October 2018

Talk
Mandel K.
Supraparticles – complex particles as smart objects for interactive materials and processes
Smart Materials and Surfaces SMS International Conf., Venice, Italy, October 2018

Talk
Mandel K.
From wet-chemical synthesis of superparamagnetic nanoparticles to functional supraparticle architectures
MSE International Conf., Darmstadt, Germany, September 2018

Talk and session chair
Mandel K.
Supraparticles: A suggestion to define the term and an outline on how they can be made and what they are good for
Particle-based Materials Symposium, Erlangen, Germany, September 2018

Talk
Mandel K.
Functional superparamagnetic supraparticles and their application towards water treatment and smart surfaces
ProcessNet Jahrestagung, Aachen, Germany, September 2018

Talk
Mandel K.
The NANO-ID project
BMBF NanoMatFutur Netzwerktreffen, Bonn, Germany, September 2018

Talk
Mandel K.
Supraparticles – complex particles as additives for new properties in advanced materials
RSC Symposium at ChemSpec Europe, Köln, Germany, June 2018

Talk (Keynote lecture) and invited session chair
Mandel K.
Synthesis and processing of tailored nanoparticles by wet chemical particle technology:
from lab to pilot scale
ACHEMA – World Forum and Leading Show for the Process Industries 2018, Frankfurt, Germany, June 2018

Talk
Mandel K.
Functional supraparticles from nanoparticles – synthesis methods and potential applications
Dechema Jahrestreffen Reaktionstechnik 2018, Würzburg, Germany, May 2018

Talk
Mandel K.
NANOSTRAHL: Supraparticles for Sandblasting
Kärcher Innovation Award, Winnenden, Germany, December 2017

Talk (Slam/Pitch)
Mandel K.
The Nanoparticle Kitchen
Fraunhofer Alumni Summit, Stuttgart, Germany, November 2017

Talk and session chair
Mandel K.
Functional supraparticles from iron oxide based nano-building-blocks
Particle-based Materials Symposium, Saarbrücken, Germany, November 2017

Talk
Mandel K.
Functional superparamagnetic supraparticles: from magnetic nanoparticles to optically interactive dispersions
International Congress Engineering of Advanced Materials ICEAM2017, Erlangen, Germany, October 2017

Talk
Mandel K.
Functional supraparticles from nano-building-blocks-spotlight on iron oxide and silica based systems
ETH Zürich, Zürich, Switzerland, September 2017

Talk (invited)
Mandel K.
Iron oxide and silica: not just boring rust and sand but building-block for fascinating functional nanostructures
Tagung Innovation durch funktionale Rohstoffe, Oftringen, Switzerland, September 2017

Talk
Mandel K.
Complex superparamagnetic particle architectures and their versatile applicability
Symposium Produktgestaltung in der Partikeltechnologie, Karlsruhe, Germany, June 2017

Talk
Mandel K.
Nanostructured micro-raspberry powders: Towards easily redispersible nanoparticles
Dispersion Days, Selb, Germany, May 2017

Talk
Mandel K.
Superparamagnetic carrier particles for water purification, resources recovery and substance sensing in fluids
253rd American Chemical Society National Meeting, San Francisco, USA, April 2017

Talk
Mandel K.
Tailored nanoparticles by wet chemical particle technology – from lab to pilot scale
253rd American Chemical Society National Meeting, San Francisco, USA, April 2017

Talk
Mandel K.
Layered Double Hydroxides (LDH) as Multifunctional Nano-agents with Potential as Flame Retardant
Trends in Fire Safety Conference, SKZ, Würzburg, Germany, March 2017

Talk
Mandel K.
Complex superparamagnetic particle architectures and their versatile applicability
7th Nano.NRW Conference, Münster, Germany, December 2016

Talk
Mandel K.
Complex particles: Particles from nano-building-blocks
Particle-based Materials Workshop, Würzburg, Germany, November 2016

Talk (invited)
Mandel K.
Colloidal engineering and synthesis of complex nanoparticle entities
CENIDE, University Duisburg-Essen, Duisburg, Germany, November 2016

Talk (invited)
Mandel K.
Colloidal engineering and synthesis of complex nanoparticle entities
Trinity College Dublin, Dublin, Ireland, August 2016

Talk
Mandel K.
The nanoparticle kitchen approach
Nanoparticle Kitchen Workshop, Würzburg, Germany, July 2016

Talk
Mandel K.
Tailored nanoparticles by wet chemical particle technology: from lab to pilot scale
PARTEC, Nürnberg, Germany, April 2016

Talk (invited)
Mandel K.
Particle technology at Fraunhofer ISC and examples of current research in the field of magnetic and complex particles
Université de Lorraine / CNRS, Nancy, France, March 2016

Talk (invited)
Mandel K.
Towards flexible pilot scale synthesis of high precision nanoparticles in dispersion
Industrielle Produktion von Nanomaterialien – Stand und aktuelle Herausforderungen, DECHEMA, Frankfurt, Germany, February 2016

Talk (invited)
Mandel K.
Superparamagnetic particles and their application in water purification and resources recovery
Nano meets water VII, Fraunhofer UMSICHT, Oberhausen, Germany, February 2016

Talk (invited)
Mandel K.
Particle technology at Fraunhofer ISC and examples of current research in the field of magnetic particles
CBI Kolloquium Friedrich-Alexander-Universität Erlangen Nürnberg, Germany, January 2016

Talk (invited)
Mandel K.
Co-Pilot: Europe’s first pilot network for nanoparticle synthesis upscaling
National information day of NKS by VDI, PTJ, PTKA & BMBF, Düsseldorf, Germany, September 2015

Talk (invited)
Mandel K.
Nano iron oxide based particles and their versatile applicability
H2020 SME Workshop on the framework of CO-PILOT, SKZ, Würzburg, Germany June 2015

Talk (invited)
Mandel K.
Particle technology at Fraunhofer ISC and examples of current research in the field of magnetic particles
TNO, Eindhoven, The Netherlands, February 2015

Talk (invited)
Mandel K.
Magnetic nanocomposite particles for separation applications
Sol-Gel Fachkonferenz Fraunhofer ISC, Würzburg, Germany, October 2014

Talk (invited)
Mandel K.
Wet chemical synthesis of inorganic (nano)particles
Technologien zur Herstellung von Mikro- und Nanopartikeln Workshop,
Kunststoffzentrum SKZ, Selb, Germany, June 2014

Talk (invited)
Mandel K.
Magnetic carrier particles for resources recovery and water purification
Forum Waste / Secondary Raw Materials (in cooperation with Bavarian State Ministry of the Environment and Consumer Protection (StMUV)),
IFAT, Munich, Germany, Mai 2014

Talk (invited)
Mandel K.
Superparamagnetic particles and their application in water purification & resources recovery
Nanotek, Las Vegas, USA, December 2013

Talk (invited)
Mandel K.
Eisenoxid Nano(komposit)partikel und ihre Anwendungsmöglichkeiten
For the board of trustees at the Fraunhofer ISC, Würzburg, Germany, October 2013

Talk (invited)
Mandel K.
Iron oxide nano(composite)particles and their versatile applicability
EMPA, Dübendorf, Switzerland May 2012

Talk (invited)
Mandel K., Hutter F., Gellermann C., Sextl G.
Superparamagnetische Partikel für Abwasserreinigung
ProcessNet-Jahrestagung 2012 u. 30. Jahrestagung d. Biotechnologen,
Karlsruhe, Germany

Talks by group members

Talk
Reichstein J.
Sicherheit durch Sichtbarkeit: Mit Suprapartikeln Wasserstoff in Farben sehen
Wasserstoff im Dialog, Dialog Veranstaltung Huckauf Ingenieure, Virtual Meeting, November 2023

Talk
Reichstein J.
Safety through visibility: supraparticles make H2 visible to the naked eye
10th Hybrid Net Sensor Fachsymposium, Karlsruhe, Germany, November 2023

Talk
Müssig S.
Supraparticles as identifiers or temperature indicators with spectral magnetic readout
18th European Conference on Solid State Chemistry, Prague, Czech Republic, July 2023

Talk
Wintzheimer S.
SUPRABEADS for Catalysis
16th International Conference on Materials Chemistry, Dublin, Ireland, July 2023

Talk
Reichstein J.
Nanochemie schafft Nachhaltigkeit
Gymnasium Christian-Ernestinum, Bayreuth, Germany, July 2023

Talk (Plenary, invited)
Wolf A.
Design for direct recycling of lithium ion batteries in light of circularity and sustainability
HYDRA International Workshop on lithium-ion batteries, Trondheim, Norway, June 2023

Talk
Wintzheimer S.
SUPRABEADS for Catalysis
12th International Colloids Conference, Young Investigator Session, Palma, Spain, June 2023

Talk (Ringvorlesung)
Wolf A.
Rohstoffkreisläufe – Warum Materialien mit uns reden müssen
Öffentliche Ringvorlesung Friedrich-Alexander-Universität, Erlangen, Germany, May 2023

Talk
Wolf A.
Magnetic in situ determintion of surface coordination motifs by utilizing the degree of particle agglomeration
Zsigmondy Kolloqium, Berlin, Germany, April 2023

Talk
Groppe P.
Supraparticles on beads for supported catalytically active liquid metals solutions – teh SCLAMS suprabead concept
Zsigmondy Kolloqium, Berlin, Germany, April 2023

Talk (Pitch)
Wolf A.
Interactive magnetic supraparticles in fluidic dynamic environments
BMW Group – Fraunhofer FhG Research Summit, Berlin, Germany, March 2023

Talk (Evening lecture)
Wintzheimer S.
Janus Particles via Spray-drying
Jahrestreffen Dechema Fachgruppe Grenzflächenbestimmte Systeme und Prozesse, Frankfurt, Germany, March 2023

Talk
Reichstein J.
Seeing H2 in Colors: Smart Indicator Additive for a Safe H2 Economy
Materials to RePowerEU, Materials Valley, Hanau, Germany, Januar 2023

Talk
Müssig S.
Supraparticles as identification tags with spectral magnetic readout
International Conference on Fine Particle Magnetism ICFPM2022, Yokohama, Japan, October 2022

Talk
Reichstein J.
Communicating supraparticles: smart additives to foster materials’ intelligence
Particle Based Materials Symposium, Erlangen, October 2022

Talk
Müssig S.
Magnetic supraparticles as information containing additives
Particle Based Materials Symposium, Erlangen, October 2022

Talk
Wintzheimer S.
Supraparticles for Sustainability
European Materials Research Society E-MRS 2022 Fall Meeting, Warsaw, Poland, September 2022

Talk
Reichstein J.
Communicating supraparticles: smart additives to foster materials’ intelligence
51st Conference of the German Colloid Society, Berlin, September 2022

Talk
Reichstein J.
H2-Indikator-Suprapartikel: Partikuläres Additiv für die optische Indikation von Wasserstoffgas
Innovationspreis der deutschen Gaswirtschaft, Online Webinar (Berlin), September 2022

Talk (Plenary, invited)
Wolf A.
The relevance of concepts like direct recycling at the dawn of low cost battery chemistries
ONS, Stavanger, Norway, August 2022

Talk
Reichstein J.
Communicating supraparticles: smart additives to foster materials’ intelligence
8th EuChemS Chemistry Congress, Lisbon, Portugal, August 2022

Talk (Keynote)
Wolf A.
Lithium-Ionen Batterien – Am Ende viel Müll oder effizienter Kreislauf ?
BMBF Bürgerforum, Ingolstadt, May 2022

Talk (invited)
Wintzheimer S.
Dust-catching coatings fighting against particulate pollution
Forum Experiment!, Hannover, May 2022

Talk
Reichstein J.
Communicating Particles: Identification Taggant and Temperature Recorder in One Single Supraparticle
GDCh Frühjahrssymposium 2022, Hannover, March 2022

Talk
Reichstein J.
Universally Applicable H2 Indicator Additive for a Safe Green H2 Economy
Bilateral Hydrogen Workshop Bavaria-Québec, Online Networking Event, November 2021

Talk
Reichstein J.
Communicating Particles: Identification Taggant and Temperature Recorder in One Single Supraparticle
Mendeleev 2021, XII International Conference on Chemistry for Young Scientists, St. Petersburg, September 2021

Cover art gallery

 

Adv. Funct. Mater. 2022, 32, 2112379. Copyright Wiley-VCH Verlag GmbH & Co. KGaA. Reproduced with permission.

Small 2021, 1, e2270006. Copyright Wiley-VCH Verlag GmbH & Co. KGaA. Reproduced with permission.

Adv. Funct. Mater. 2021, 34, 2104189. Copyright Wiley-VCH Verlag GmbH & Co. KGaA. Reproduced with permission.

Particle and Particle Systems Characterization. 2021, 8, 2100098. Copyright Wiley-VCH Verlag GmbH & Co. KGaA. Reproduced with permission.

Small 2022, 28, e2101588. Copyright Wiley-VCH Verlag GmbH & Co. KGaA. Reproduced with permission.

Adv. Funct. Mater. 2021, 31, 2011089. Copyright Wiley-VCH Verlag GmbH & Co. KGaA. Reproduced with permission.

 

Cover all white magnet-1

Reproduced from J.Mater.Chem.C, 2020,8,16010 with permission from the Centre National de la Recherche Scientifique (CNRS) and The Royal Society of Chemistry.

 

Adv. Photonics Res. 2020, 1, 2000023. Copyright Wiley-VCH Verlag GmbH & Co. KGaA. Reproduced with permission.

 

Cover

Adv. Funct. Mater. 2019, 29, 1901193. Copyright Wiley-VCH Verlag GmbH & Co. KGaA. Reproduced with permission.

 

Cover

Part. Part. Syst. Charact. 2018, 35, 1800096. Copyright Wiley-VCH Verlag GmbH & Co. KGaA. Reproduced with permission.

 

Cover

Elsevier Inc., Journal of Colloid and Interface Science, 2017.

 

 

Reproduced from Journal of Materials Chemistry C, issue 39, 2017, with permission from the Royal Society of Chemistry.

Teaching

Teaching
The Supraparticle Group


Logo: The Supraparticle Group


Winter term:

  • Nano Materialien -VL (BSc Molecular Science)
  • Nano Materialien -SEM (BSc Molecular Science)
  • Graduate seminar on supraparticle research
  • Seminar z. Anorgan.-Chemischen Praktikum für CBI, LSE, CEN
  • Anorganisch-analytisch-chemischer Kurs für Anfänger (CBI/LSE/CEN))

 

Summer term:

  • Anorganische Chemie 2 – Chemie der Metalle – Nanostrukturen (BSc)
  • Orientierungsmodul / Vertiefung Anorganische Chemie (BSc)
  • Graduate seminar on supraparticle research
  • Inorganic Chemistry (MSc)
  • Inorganic Nanoparticles & Supraparticles (MSc)

 

Advanced lab courses (winter and summer term):

  • Lab Module Molecular Science (BSc)
  • Lab Module Inorganic Chemistry (MSc)
  • Lab Module Molecular Science (MSc)
  • Research Module Inorganic Chemistry (MSc)
  • Research Module Molecular Science (MSc)

 

Theses (the whole year):

BSc and MSc Theses

 

All slides are provided on StudOn. The password is given in the lecture or on request.

Research

Research
The Supraparticle Group


Logo: The Supraparticle Group


In the Supraparticle Group, we design highly functional supraparticles, i.e., particles of a few µm in size that are composed of nanoparticle (and molecular) building blocks.

These complex entities are achieved via forced assembly of the (nano) building blocks, mainly by using the technique of spray-drying.

We study how structure, besides (multimaterial) composition, of such supraparticles affects the interaction among the building blocks of these entities and how this leads to unique functionalities.

We exploit these findings for designing highly innovative communicating / interactive supraparticles and multifunctional adsorber / carrier and catalyst entities.

Many different material systems are studied in the group, but a special focus is on iron oxide nanoparticle-based magnetic systems and their characterization in particularly via magnetic particle spectroscopy (MPS), a to date rather unexplored approach that we pioneer.

Our research areas in detail:

Wet chemically synthesized nanoparticles with designed properties

 

Size, shape and composition determine the ultimate properties of nanoparticles. Chemical synthesis control enables tailoring these.­­ We synthesize and surface functionalize nanoparticles by means of bottom-up wet chemistry and subsequently use these as building blocks to assemble functional supraparticles.­ A main interest is on magnetic, luminescent, adsorber and catalyst nano building blocks.

 

 

Selected publications: 

Zhang K., Schötz S., Reichstein J., Groppe P., Stockinger N., Wintzheimer S., Mandel K., Libuda J., Retzer T.
Supraparticles for naked-eye H2 indication and monitoring: improving performance by variation of the catalyst nanoparticles
In: The Journal of Chemical Physics (2023)
DOI: 10.1063/5.0135130

 

Granath T., Mandel K., Löbmann P.
The Significant Influence of the pH Value on Citrate Coordination upon Modification of Superparamagnetic Iron Oxide Nanoparticles
In: Particle and Particle Systems Characterization (2022)
DOI: 10.1002/ppsc.202100279

 

Granath T., Loebmann P., Mandel K.
Overcoming the Inhibition Effects of Citrate: Precipitation of Ferromagnetic Magnetite Nanoparticles with Tunable Morphology, Magnetic Properties and Surface Charge
via Ferrous Citrate Oxidation
In: Particle and Particle Systems Characterization (2021)
DOI: 10.1002/ppsc.202100098

 

Granath T., Loebmann P., Mandel K.
Oxidative Precipitation as a Versatile Method to Obtain Ferromagnetic Fe3O4 Nano- and Mesocrystals Adjustable in Morphology and Magnetic Properties
In: Particle & Particle Systems Characterization (2021)
DOI: 10.1002/ppsc.202000307

 

Muendlein M., Schug B., Wintzheimer S., Mandel K.
Facile synthesis of magnetic nanoparticles optimized towards high heating rates upon magnetic induction
In: Journal of Magnetism and Magnetic Materials 488 (2019), Article No.: 165350
DOI: 10.1016/j.jmmm.2019.165350

General supraparticle formation: bridging molecular and materials chemistry

 

Upon droplet evaporation, using the tool spray-drying, forced assembly of nano building blocks to supraparticles is possible. Furthermore, via this method, also molecular precursors and molecules can be joined, i.e., we can also perform “chemistry in a droplet”.

We study how structure, besides composition, of such supraparticles affects the interaction among the building blocks of these entities and how this leads to unique functionalities.

 

Selected publications:

Wintzheimer S., Luthardt L., Cao K.L.A., Imaz I., Maspoch D., Ogi T., Bück A., Debecker D.P., Faustini M., Mandel K.
Multifunctional, hybrid materials design via spray-drying: much more than just drying
In: Advanced  Materials (2023)
DOI: 10.1002/adma.202306648

 

Wenderoth S., Bleyer G., Endres J., Prieschl J., Vogel N., Wintzheimer S., Mandel K.
Spray-dried photonic balls with a disordered/ordered hybrid structure for shear stress indication
In: Small (2022)
DOI: 10.1002/smll.202203068

 

Wenderoth S., Eigen A., Wintzheimer S., Prieschl J., Hirsch A., Halik M., Mandel K.
Supraparticles with a mechanically triggerable color-change-effect to equip coatings with the ability to report damage
In: Small (2022)
DOI: 10.1002/smll.202107513

 

Pujales Paradela R., Granath T., Seufert M. T., Kasper T., Müller-Buschbaum K., Mandel K.
Luminescent magnets: hybrid supraparticles of a lanthanide-based MOF and ferromagnetic iron oxide by assembly in a droplet via spray-drying
In: Journal of Materials Chemistry C (2022)
DOI: 10.1039/D1TC04867H

 

Müssig S., Koch V. M., Cuadrado C. C., Bachmann J., Thommes M., Barr M. K. S., Mandel K.
Spray-Drying and Atomic Layer Deposition: Complementary Tools toward Fully Orthogonal Control of Bulk Composition and Surface Identity of Multifunctional Supraparticles
In: Small Methods (2021)
DOI: 10.1002/smtd.202101296

 

Communicating and interactive supraparticles

We believe that supraparticles can be turned into communicating and interactive objects – a vision that we would like to become reality. Particles are developed that carry unique IDs, are able to perceive and subsequently report environmental stimuli, and can transform their state – which includes principles of micro reactor / micro ecosystems in a particle.

 

Selected publications:

Reichstein J., Müssig S., Wintzheimer S., Mandel K.
Communicating supraparticles to enable perceptual, information-providing matter
In: Advanced  Materials (2023)
DOI: 10.1002/adma.202306728

 

Wenderoth S., Müssig S., Prieschl J., Genin E., Heuzé K., Fidler F., Haddad D., Wintzheimer S., Mandel K.
Optically sensitive and magnetically identifiable supraparticles as indicators of surface abrasion
In: Nano Letters (2022)
DOI: 10.1021/acs.nanolett.1c04773

 

Reichstein J., Schötz S., Macht M., Maisel S., Stockinger N., Cuadrado Collados C., Schubert K, Blaumeiser D., Wintzheimer S., Görling A., Thommes M., Zahn D., Libuda J., Bauer T., Mandel K.
Supraparticles for Bare-Eye H2 Indication and Monitoring: Design, Working Principle, and Molecular Mobility
In: Advanced Functional Materials (2022)
DOI:10.1002/adfm.202112379

 

Müssig S., Reichstein J., Miller F., Mandel K.
Colorful Luminescent Magnetic Supraparticles: Expanding the Applicability, Information Capacity and Security of Micron-scaled Identification Taggants by Dual-Spectral Encoding
In: Small (2022)
DOI: 10.1002/smll.202107511

 

Reichstein J., Miller F., Wintzheimer S., Mandel K.:
Communicating Particles: Identification Taggant and Temperature Recorder in One Single Supraparticle
In: Advanced Functional Materials (2021)
DOI: 10.1002/adfm.202104189

 

Multifunctional adsorbers and carriers

Joining different nano building blocks to supraparticles is particularly interesting for adsorber and carrier systems. Firstly, porous systems can be generated (via interstitial and/or templated pore formation). Secondly, besides chemical adsorber affinity / carrier design, further functionality addition is possible such as magnetic properties for separation or inductive heatability of the system.

 

Selected publications:

Drenkova-Tuhtan A., Inskeep C. S., Luthardt L., Deuso S., Ballweg T., Hanselmann D., Bealu Z., Meyer C., Schug B., Steinmetz H., Mandel K.
Reusable and inductively regenerable magnetic activated carbon for removal of organic micropollutants from secondary wastewater effluents
In: Water Research (2024)
DOI: 10.1016/j.watres.2024.121525

 

Schneider M., Tschoepe A., Hanselmann D., Ballweg T., Cehermann C., Franzreb M., Mandel K.
Adsorber Particles with Magnetically-Supported Improved Electrochemical Conversion Behavior for Waste Water Treatment Processes
In: Particle & Particle Systems Characterization (2020)
DOI: 10.1002/ppsc.201900487

 

Schneider M., Ballweg T., Gross L., Cellermann C., Sanchez-Sanchez A., Fierro V., Ceizard A., Mandel K.
Magnetic Carbon Composite Particles for Dye Adsorption from Water and their Electrochemical Regeneration
In: Particle & Particle Systems Characterization (2019)
DOI: 10.1002/ppsc.201800537

 

Oppmann M., Wozar M., Reichstein J., Mandel K.
Reusable Superparamagnetic Raspberry-Like Supraparticle Adsorbers as Instant Cleaning Agents for Ultrafast Dye Removal from Water
In: ChemNanoMat (2019)
DOI: 10.1002/cnma.201800490

 

Drenkova-Tuhtan A., Schneider M., Franzreb M., Meyer C., Gellermann C., Sextl G., Mandel K., Steinmetz H.
Pilot-scale removal and recovery of dissolved phosphate from secondary wastewater effluents with reusable ZnFeZr adsorbent @ Fe3O4/SiO2 particles with magnetic harvesting
In: Water Research (2017)
DOI: 10.1016/j.watres.2016.11.039

 

Multifunctional catalysts

Supraparticles can provide an emergent, tunable porosity and precisely configurable accessibility of active catalyst sites, thus, enhanced catalytic activity and stability. Their flexible setup also permits the integration of multiple different building blocks, which allows for coupling interactions within the material, e.g., energy transfers, or the addition of further functionalities such as an inductive heatability of the systems. For the direct application of supraparticles in catalytic fixed-bed reactors, their attachment on beads, yielding ‘suprabeads’, is a strategy to increase their size regime without compromising their unique supraparticle-based functionality.

 

Selected publications:

Zimmermann T., Madubuko N., Groppe P., Raczka T., Dünninger N., Tacardi N., Carl S., Apeleo Zubiri B., Spiecker E., Wasserscheid P., Mandel K., Haumann M., Wintzheimer S.
Supraparticles on beads for supported catalytically active liquid metal solutions – the SCALMS suprabead concept
In: Materials Horizons (2023)
DOI: 10.1039/D3MH01020A

 

Zhang K., Reichstein J., Groppe P., Schötz S., Stockinger N., Libuda J., Mandel K., Wintzheimer S., Retzer T.
Molecular and structural insights into H2 indicator supraparticles: lowering the limit of detection by tuning incorporated catalyst nanoparticles
In: Chemistry of Materials (2023)
DOI: 10.1021/acs.chemmater.3c01105

Magnetic entities and magnetic particle spectroscopy (MPS)

Iron oxide-based nanoparticles can be engineered to be magnetically steerable, inductively heatable or chemically reactive. Joined to entites such as supraparticles, collective magnetic interaction occurs. Besides designing these magnetic interactions, we also study them via the method of magnetic particle spectroscopy (MPS) that we pioneer and consider as a very powerful tool that provides new eyes to study processes or materials when it is dark, i.e., when one cannot use (light) optical means.

 

Selected publications:

Wolf A., Sauer J., Hurle K., Müssig S. and Mandel K.
Magnetic supraparticles capable of recording high temperature events
In: Advanced Funtional Materials (2024)
DOI: 10.1002/adfm.202316212

 

Wolf A., Zink A., Stiegler L., Branscheid R., Apeleo Zubiri B., Müssig S., Peukert W., Walter J., Spiecker E., Mandel K.
Magnetic In Situ Determination of Surface Coordination Motifs by Utilizing the Degree of Particle Agglomeration
In: Journal of Colloid and Interface Science (2023)
DOI: 10.1016/j.jcis.2023.05.182

 

Groppe P., Wintzheimer S., Eigen A., Gaß H., Halik M., Mandel K.
Real-time Monitoring of Magnetic Nanoparticles-assisted Nanoplastic Removal from Water
In: RSC Environmental Science: Nano (2022)
DOI: 10.1039/D2EN00131D

 

Reichstein J., Müssig S., Bauer H., Wintzheimer S., Mandel K.
Recording Temperature with Magnetic Supraparticles
In: Advanced  Materials (2022)
DOI: 10.1002/adma.202202683

 

Müssig S., Reichstein J., Prieschl J., Wintzheimer S., Mandel K.
A Single Magnetic Particle with Nearly Unlimited Encoding Options
In: Small (2021)
DOI: 10.1002/smll.202101588

 

 

 

 

 

 

Group members

Current members of the Mandel group at the FAU


Logo: The Supraparticle Group


 

Location

We are Located at the Chair of Inorganic and General Chemistry, Egerlandstraße 1, in the second floor

 

Head

Post Docs

PhD students

Master’s students

  • Markus Heinlein
  • Kevin Bürner

Hiwis

  • Daniel Dreykorn
  • Anindya Menon
  • Anna Koch
  • Leonora Sertolli

Chemical technician

Group

The Supraparticle Group (FAU) and the Particle Technology Group (ISC)


Logo: The Supraparticle Group


The Supraparticle Group (FAU) and the Particle Technology Group (ISC) 2023

The Supraparticle Group (FAU) 2021

 

The Particle Technology Group (ISC) 2021

(© Marie-Luise Righi)

The Supraparticle Group (FAU) 2020

The Supraparticle Group (FAU) and the Particle Technology Group (ISC) in 2019

(c) K.Selsam for Fraunhofer ISC

 

Mandel group

Professorship for
Inorganic Chemistry
The Supraparticle Group


Logo: The Supraparticle Group


Prof. Dr. Karl Mandel

Department of Chemistry and Pharmacy
Professorship for Inorganic Chemistry (Prof. Dr. Mandel)

Room: Room A 2.20
Egerlandstraße 1
91058 Erlangen

Our research

In the Supraparticle Group, we design highly functional supraparticles, i.e., particles of a few µm in size that are composed of nanoparticle (and molecular) building blocks.

These complex entities are achieved via forced assembly of the (nano) building blocks, mainly by using the technique of spray-drying.

We study how structure, besides (multimaterial) composition, of such supraparticles affects the interaction among the building blocks of these entities and how this leads to unique functionalities.

We exploit these findings for designing highly innovative communicating / interactive supraparticles and multifunctional adsorber / carrier and catalyst entities.

Many different material systems are studied in the group, but a special focus is on iron oxide nanoparticle-based magnetic systems and their characterization in particularly via magnetic particle spectroscopy (MPS), a to date rather unexplored approach that we pioneer.

Find out more, here.

 

Transfer to real-life application is achieved together with the Fraunhofer part of our group at Fraunhofer ISC in Würzburg.

 

Ultimately, via smart supraparticles, we aim at contributing to sustainability.

 

  • In this new article, we present dual-gasochromic supraparticles that enable the visual detection of hazardous H2 gas and NH3 vapors via gas specific color change reactions. Moreover, this work shows the capability of synthetically tailoring the reaction environment within the solid-liquid-gas interf...

  • Last week we officially started the work within the ERC consolidator grant "Smart Rust" (Magnetic memory supraparticles for perceptual matter; ERC COG 101123921 – SmartRust), which will keep us busy for the next 5 years. Besides some organizational matters, plenty of brainstorming and a lab tour ...

  • Massive effort to publish this indepth study on how structure in supraparticles affects catalytic activity. Small just accepted our article after a long way.   Groppe P., Reichstein J., Carl S., Cuadrado Collados C., Niebuur B., Zhang K., Apeleo Zubiri B., Libuda J. Kraus K. Retzer T. Tho...

  • Great work lead by the Crisp Group! Dehm K., Zanetti A., Fett B., Mauritz V., Hamburger R., Langford D., Guldi D., Young E.,  Mandel K. Crisp R. Alteration of the Optoelectronic Properties of CuInS2 Quantum Dots via Colloidal Annealing In: Chrystal Growth & Design (2024), just accepted

  • Another article was accepted in which we report on the influence of agglomeration and with that the influence on magnetic interactions among nanoparticles with regard to the inductive heatability of magnetic nanocomposites. Raczka T., Wolf A., Reichstein J., Stauch C., Schug B., Müssig S., Mandel...

  • In a new article, we present the latest advances in our H2 indicator supraparticles technology. We demonstrate that their scalable, toolbox-like manufacturing via spray drying provides multiple options to customize their composition, structure, and texture for improving their detection performance. ...

  • In this article, we report on a facile way to produce Janus supraparticles using spray-drying. Zhou H., Prieschl J., Groppe P., Mandel K., Wintzheimer S. One-step fabrication of platelet-shaped Janus supraparticles via spray-drying In: Powder Technology (2024), just accepted

  • Andreas Zink was voted by the participants of the Spray-drying Symposium 2024 as one of the two winners of a poster prize - Congratulations Andi!

  • Spray-drying Symposium 2024 was a success! We thank all participants of the Spray-drying Symposium 2024 for the Wonderful two days of science in Würzburg. Find out more, here. Happy to have organized such a wonderful event.

  • Great collaboration in the field of water purification using smart particles with Asya Drenkova-Tuhtan, Carsten Meyer and Heidrun Steinmetz. Find out more, here.   Drenkova-Tuhtan A., Inskeep C. S., Luthardt L., Deuso S., Ballweg T., Hanselmann D., Bealu Z., Meyer C., Schug B., Steinmetz ...