Index

Group Activities

Besides science, we also like to do things together in our free time. Whether it is the coffee in the morning, cake party, cooking and having barbecues together or sports activities – there are plenty of things we enjoy doing together as a group on a regular basis. Please, have a look at some of our activities.

As tradition demands it, the Supraparticle Group followed the invitation of the Chair of Inorganic Chemistry to the Bergkirchweih. After a traditional Weißwurst-Frühstück at the university, we enjoyed the walk to the Berg and joined the other Groups at the Tucher Keller.

The Supraparticle group goes Bowling

FAU and ISC Groups coming together for a BBQ

Multifunctional catalysts

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:

Contact | How to reach us

How to reach us

By car:

Egerlandstraße 1 91058 Erlangen.

Parking on both sides of the street is allowed but busy during working hours.
Alternatively: contact secretary Dr. Samaneh Masoumi and ask for help.

By public transport

Leave the train station in the direction of “Stadtzentrum” (city center).
Take the bus line 287 (Sebaldussiedlung) from “Erlangen, Hauptbahnhof” to
“Erlangen, Technische Fakultät”. From there you can reach “Egerlandstraße 1“ in approximately 3 min by foot.
For information in detail, please visit VGN (Verkehrsverbund Großraum Nürnberg GmbH).

Institute for Inorganic and General Chemistry II

Department of Chemistry and Pharmacy
Professorship for Inorganic Chemistry
Egerlandstraße 1
91058 Erlangen
2nd floor

Rooms

Prof. Karl Mandel / Dr. Susanne Wintzheimer  A2.20

PhD Candidates  A2.08

Labs  A2.41 / A2.42

Secretary

Dr. Samaneh Masoumi

Equipment

Location: Inorganic Chemistry at the FAU

Our own equipment includes:

Material Processing

• Büchi Spray-dryers (2x)
• Furnaces
• Centrifuge
• Rotary evaporator
• Diverse ultrasonic units
• Microwave
• Induction heater

Material characterization

• Field-emission scanning electron microscopy (shared with the Bachmann Group): Jeol JSM-F100 with EDX, low-pressure operation mode, STEM, and sample plasma cleaner.
• Magnetic particle spectroscopy
• Fluorescence spectrometer
• Gas sorption analyzer
• Dynamic light scattering
• Climate chamber

We furthermore have access to the great arsenal of equipment of the Meyer, the Bachmann and the Vogel group (see LINKS) including a SQUID magnetometer and powder XRD. The colleauges are gratefully acknowledged for granting us access.

Open positions

We are always looking for dedicated students who would like to do a BSc or MSc thesis or work as an intern. PhD positions are available occasionally as well.

For detailed information on our topics of research please visit the Research or Publications section on our website.

Interested? Please contact:  karl.mandel@fau.de or susanne.wintzheimer@fau.de.

The Particle Technology Group at Fraunhofer ISC:

Please, also have a look at the interesting research of the Fraunhofer part of our group in Würzburg.

https://www.isc.fraunhofer.de/en/fields-of-activity/processing/particle-technology.html

https://www.partikel.fraunhofer.de

Interested? Please contact Karl Mandel directly: karl.mandel@isc.fraunhofer.de

Alumni

Scientific staff:

• Dr. Rosa Pujales-Paradela

PhD candidates:

• Dr. Stephan Müssig
  Development of supraparticles suitable for magnetic identification tags

• Dr. Sarah Wenderoth
  Synthesis and characterization of shear stress indicator supraparticles

• Franziska Miller

• Dr. Claudia Stauch
  Synthese und Charakterisierung nanostrukturierter Mikropartikel mit einstellbarem Zerfallsverhalten als Additive für Elastomerkompositen

• Dr. Michael Schneider
  Entwicklung magnetischer Kompositpartikel zur Fluidbehandlung und Wertstoffrückgewinnung

• Tim Granath
  Fundamental studies on the synthesis of iron oxide nanoparticles
  

Scientific assistants:

• Benita Stein von Kamienski
• Nihad Dzay

Master students:

• Sebastian Kolb
• Valentin Müller
• Valentino Gabriel Martello
• Lena Mittmann
• Timo Uhlein
• Leoni Luthardt
• Julian Sauer
• Sara Li Deuso
• Frederic Rudlof
• Olga Lu
• Andreas Zink
• Antonia Eppinger
• Anna Feghelm
• Bastian Fett
• Philipp Groppe
• Michael Hoffmann
• Ali Islek
• Martin Klement
• Max Mündlein
• Stephan Müssig
• Jakob Reichstein
• Jonas Schmitt
• Stephan Späth
• Sandra Thürauf

Short-time group members:

• Nils Dünninger
• Nico Groß
• Micah Mc Naire
• Konstantin Benethues
• Marius Steinmetz
• Nico Ruhland
• Prabhakar Bijalwan
• Lei Ye
• Kevin Bürner
• Jonas Neumayer
• Bowen Yang
• Nihad Dzay
• Frederic Dietrich
• Joschka Kallenda
• Timo Uhlein
• Mai Linh Vu
• Simon Hammer
• Hannes Bauer
• Rene Kellner
• Moritz Klüh
• Julian Maier
• Indrasena Maddipatla
• Daniel Stockmann
• Jianing Bao
• Maximilian Herm
• Felix Heckmann
• Nina Stockinger
• Rui Wang
• Lena Stiegler
• Mei Chun Shen
• Julian Sauer
• Hendrik Bohn
• Huiyi Xu
• Alexander Burger
• Matti Duschek
• Filiz Ergen
• Alexander Göbel
• Mario Guth
• Marcella Günther
• Roland Honoré-Rougé
• Larissa Keßler
• Theresa Kiunke
• Franziska Miller
• Tim Reuter
• Jennifer Stubenrauch
• Moritz Wozar
• Julia Zillner

Sarah Wenderoth

Sarah Wenderoth

Julius-Maximilians-Universität Würzburg
Chair for Chemical Technology of Materials Synthesis

Röntgenring 11
97070 Würzburg

• Phone number: +4909314100429
• Email: sarah.wenderoth@isc.fraunhofer.de

 

Sarah Wenderoth graduated from the Saarland University in 2018 with a Master of Science degree in Chemistry. During her studies she was focusing on the synthesis, modification and characterisation of nanoparticles. Her master thesis was performed in cooperation between the Leibniz-Institute for New Materials in Saarbrücken and the Monash Institute of Pharmaceutical Sciences in Melbourne under the supervision of Prof. Dr. Tobias Kraus.
Afterwards she started her PhD at the Julius-Maxmilians University in Würzburg in Prof. Dr. Karl Mandel’s group. The topic of her PhD is the synthesis and characterisation of shear stress indicator supraparticles based on nanoparticle building blocks.

Publications:

2022

• 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
• 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
• 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
• 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

2021

• 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
• • 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)
    ISSN: 1616-301X
    DOI: 10.1002/adfm.202011089

2020

• 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
  ISSN: 2699-9293
  DOI: 10.1002/adpr.202000023

2019

• Clasen A., Wenderoth S., Tavernaro I.,  Fleddermann J., Kraegeloh A. , Jung G.:
  Kinetic and Spectroscopic Response of pH-sensitive Nanoparticles: The influence of the silica matrix
  In: RSC Advances 9 (2019), p. 35695-35705
  DOI: 10.1039/C9RA06047B

• 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
  ISSN: 2574-0970
  DOI: 10.1021/acsanm.9b01693

• Wintzheimer S., Reichstein J., Wenderoth S., Hasselmann S., Oppmann M., Seuffert M. T., Müller‐Buschbaum K., Mandel K.:
  Expanding the Horizon of Mechanochromic Detection by Luminescent Shear Stress Sensor Supraparticles
  In: Advanced Functunial Materials 29 (2019), Article No.: 1901193
  ISSN: 1616-301X
  DOI: 10.1002/adfm.201901193

2017

• Schmidt S., Tavernaro I. , Cavelius C. , Weber E., Kümper A., Schmitz C., Fleddermann J. , Kraegeloh A.:
  Silica Nanoparticles for Intracellular Protein Delivery: a Novel Synthesis Approach Using GreenFluorescent Protein
  In: Nanoscale Research Letters 12 (2017), p. 545.
  DOI: 10.1186/s11671-017-2280-9

Bastian Fett

Bastian Fett

Fraunhofer Institute for Silicate Research ISC
The Particle Technology Group

Neunerplatz 2
97082 Würzburg

• Phone number: +4909314100307
• Email: bastian.fett@isc.fraunhofer.de

 

Bastian Fett has been awarded the Master’s degree by the Technical University of Darmstadt and the Aalto University located in Espoo, Finland. The degree was completed in accordance with the Master’s Programme in Advanced Materials for Innovation and Sustainability (AMIS) with a major in materials science and a minor in innovation and entrepreneurship. After he finished his Master‘s thesis in the group of Prof. Mandel, he started doing a PhD within the group. His work is focused on innovative materials for tandem solar cells based on perovskites and furthermore an alternative use of those in the form of luminescent perovskite quantum dots. Although he is part of the Supraparticle Group, his work is based in the labs of the Fraunhofer ISC in Würzburg.

Publications:

2023

• 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), just accepted
  DOI: 10.1002/pssa.202200882
• 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

2022

• 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 Technologies (2022)
  DOI: 10.1002/ente.202200197
• 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

Susanne Wintzheimer

Dr. Susanne Wintzheimer

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

Room: Room A 2.20
Egerlandstraße 1
91058 Erlangen

• Phone number: +49 9131 85-65203
• Fax number: +49 9131 85-27367
• Email: susanne.wintzheimer@fau.de

 

Susanne Wintzheimer obtained her M.Sc. in Technology of Functional Materials from the University of Würzburg in 2013 and her Ph.D. in Chemistry from the University of Bordeaux in 2017. After being PostDoc at the University of Würzburg from 2018 to 2020, she is now PostDoc at the Friedrich-Alexander University Erlangen-Nürnberg and has recently started her independent career thanks to funding from the Max Buchner Research Foundation, Volkswagen Foundation,  and Klaus Tschira Foundation.

Based on the assembly of nanoscale and molecular building blocks, the research of Dr. Susanne Wintzheimer not only focuses on the development of supraparticle-based materials such as coatings or millimeter-scaled beads but also on the combination of catalytically active and supportive materials within supraparticles for heterogeneous catalysis.

for a detailed CV please email susanne.wintzheimer@fau.de.

Funding

We gratefully acknowledge all funding organizations as listed below for their trust and support of our projects. The company Büchi is gratefully acknowledged for providing our key lab equipment, the spray-dryer, and the fruitful collaboration. Many thanks go to Karsten Meyer and the members of his chair for their daily support and for giving us access to their equipment. Many thanks also to Julien Bachmann and Nicolas Vogel for granting us access to their facilities as well.

Former funding:

• Volkswagen Stiftung
• DECHEMA – Max Buchner Research Foundation