Ullmann, Christian

Field of activity:  

• particle measurement technology of nano materials
• Professional knowledge under section 5 of the German Chemicals Prohibition Order (ChemVerbotsV)

PhD topic

• nano particle characterisation with analytical centrifugation

Awards

• Young Scientist Award 2018, endowed by LUM GmbH

• Training Grundprozesse der Mechanischen Verfahrenstechnik
• Training Bioaufarbeitungstechnik
• lecture substitute Partikelmesstechnik (particle size analysis)
• Supervision of students during research and the diploma thesis
• Member of the MW Starthelfer-Programm for the support of students in the early semesters

recent:

• NANOPIG www.aif.de
  AiF-IGF-project; method development for determination of the quantity of nanoparticles in paint formulations. project no. 20631 N. funded by BMWI via Forschungsgesellschaft für Pigmente und Lacke e.V. - FPL

former projects:

• GUIDANCE ON DETECTION AND IDENTIFICATION OF NANOOBJECTS IN COMPLEX MATRICES https://standards.cen.eu

  CEN TC 352 Nanotechnologies - Suitability of particle size and surface area measurement methods for the assessment of the amount of nano-objects in a sample

• NANODEFINE www.nanodefine.eu 
  Development of an integrated approach based on validated and standardized methods to support the implementation of the EC recommendation for a definition of nanomaterial (NANODEFINE) Funded by the EU 7th Framework Programme (FP7-NMP-2013-Large-7, Grant Agreement nr. 604347)
• S-PAC (Photovoltaic-automatization cluster Saxony) www.s-pac.de 
  Joint Project 3: Automated modular compact system for beam etching on siliconbased solar cells. Sub projekt 3.3: Atmospherical passivation technology/ metallizing. Funded by the Federal Ministry of Education and Research (BMBF), Management by Jülich (PtJ)

Subject of diploma thesis: 

• Chemical deposition of aluminium oxide on silicon-wafers by spray-pyrolysis, Study of Chemical Engineering, thesis at Fraunhofer-Institute for Material and Beam Technology IWS / Technische Universität Dresden: Institute of Materials Science 2013  

articles

• C. Ullmann, F. Babick, M. Stintz: Microfiltration of submicron-sized and nano-sized Suspensions for Particle Size Determination by Dynamic Light Scattering. Nanomaterials 9,829 (2019) doi:10.3390/nano9060829
• C. Ullmann, F. Babick, R. Koeber, M. Stintz: Performance of analytical centrifugation for the particle size analysis of real-world materials. Powder Technology, 319 (2017), 261–270.  doi: 10.1016/j.powtec.2017.06.057
• F. Babick, C. Ullmann: Error propagation at the conversion of particle size distributions. Powder Technology, 301 (2016), 503–510.
  doi: 10.1016/j.powtec.2016.06.039

proceedings

• C. Ullmann, I. Rio, D. Mehn, D. Gilliland, W. Wohlleben, R. Koeber, F. Babick: Evaluation of particle sizing by analytical centrifugation using real-world materials for the implementation of the EC definition of the term “nanomaterial” Proceedings of the Nanotech & NanoMetrology France 2017 Conference and Exhibition, Paris: Frankreich, 28.-30.06.2017
  doi: 10.26799/cp-nanotechfrance2017.4

scientific research reports

• C. Ullmann, P. Mueller: SOP, applicability range and method performance description for DLS & MiniTEM NanoDefine Consortium, Wageningen, 2017
• D. Gilliland, F. Pianella, I. Rio, K. Loeschner, M. Correia, E. Verleysen, J. Mast, C. Ullmann: Standardised dispersion protocols for high priority materials groups NanoDefine Consortium, Wageningen, 2016

oral presentations

• C. Ullmann, M. Stintz, H. Greisiger, M. Entenmann: NANOPIG - Entwicklung von übertragbaren Methoden zur Bestimmung des nano-skaligen Anteils von Pigmenten in Beschichtungsformulierungen . VDI Jahrestreffen der ProcessNet-Fachgruppe Partikelmesstechnik. Clausthal-Zellerfeld: Germany, 14.-16.09.2020
• P. Fiala, T. Wagner, C. Ullmann, M. Stintz: Software basierte Bildauswertung zur Charakterisierung von Nanomaterialien mittels Elektronenmikroskopie. Jahrestreffen der ProcessNet-Fachgruppe Partikelmesstechnik. Bremen: Germany, 08.-09.03.2018
• C. Ullmann, I. Rio, D. Mehn, D. Gilliland, W. Wohlleben, R. Koeber, F. Babick:   Evaluation of analytical centrifugation performance for the particle size analysis of real-world materials International Conference and Workshop Dispersion Analysis & Materials Testing 2018 Berlin: Germany, 29.-30.01.2018
• M. Stintz, C. Ullmann, F. Babick: Screening methods for rapid and cost-effective identification of nanomaterials as substances (powders, suspensions) or in products (formulations). 2nd NanoDefine Industry-focused Workshop Measurement and classification of nanomaterials according to the EU definition Frankfurt a.M.: Germany 24.10.2017
• M. Stintz, C. Ullmann, F. Babick: Screening methods - Scope and limitations  NanoDefine final Outreach event "Classification of Materials according to the EU Nano-Definition” Brussels: Belgium, 19.-20.09.2017
• C. Ullmann, I. Rio, D. Mehn, D. Gilliland, W. Wohlleben, R. Koeber, F. Babick: Evaluation of particle sizing with analytical centrifugaton methods.  NanoMetrology Conference and Exhibition France 2017. Paris: France, 28.-30.06.2017
• C. Ullmann, D. Mehn, D. Gilliland, W. Wohlleben, F. Babick: Evaluierung der Partikelgrößenbestimmung mit der optischen Zentrifugation für die Implementierung der EU-Definition für den Begriff "Nanomaterial". VDI Jahrestreffen der ProcessNet-Fachgruppe Partikelmesstechnik. Dresden: Germany, 14.-17.03.2017
• C. Ullmann, D. Mehn, D. Gilliland, W. Wohlleben, F. Babick: Evaluation of particle sizing with analytical centrifugation for the implementation of the EC definition of a nanomaterial. International Workshop Dispersion Analysis & Materials Testing Berlin: Germany, 26.-27.09.2016
• K. Loeschner, D. Gilliland, K.A. Jensen, M. Correia, F. Pianella, F. Rossi, M.E. Verleysen, J. Mast, C. Ullmann, M. Stintz: Challenges in developing dispersion procedures for nanoparticles in large scale scientific projects.  PARTEC 2016 - International Congress on Particle Technology, Nuremberg: Germany 19.-21.04.2016
• J. Mielke, F. Babick, C. Ullmann, S. Weigel, V.-D. Hodoroaba: Evaluation and comparison of particle sizing techniques within the EC/FP7 project NANODEFINE. SETNanoMetro: International summer workshop NANOSCIENCE meets METROLOGY: size and shape engineering of nanoparticles towards improved technologies for energy, environment and health. Erice: Italy, 27.-31.07.2015
• C. Ullmann: Characterisation of disperse systems with cuvette analytical centrifugation. NanoDefine Workshop, University Vienna, Austria, 24.04.2015

poster presentations

• C. Ullmann, M. Entenmann, M. Stintz: Nanopig - Entwicklung von übertragbaren Methoden zur Bestimmung des Nanopartikelanteils von Pigmenten in Lackformulierungen. 83. Lacktagung der GDCh Fachgruppe Lackchemie, Erfurt: Germany, 11.-13.09.2019
• C. Ullmann, I. Rio, D. Mehn, D. Gilliland, W. Wohlleben, R. Koeber, F. Babick: Analytical centrifugation methods for nanomaterial classification screening. PMT P07 Jahrestreffen der ProcessNet-Fachgruppe Partikelmesstechnik. Bremen: Germany, 08.-09.03.2018
• C. Ullmann, I. Rio, D. Mehn, D. Gilliland, W. Wohlleben, R. Koeber, F. Babick: Analytical centrifugation methods for nanomaterial characterisation. 2nd NanoDefine Industry-focused Workshop Measurement and classification of nanomaterials according to the EU definition Frankfurt a.M.: Germany 24.10.2017
• J. Mielke, V.-D. Hodoroaba, F. Babick, C. Ullmann: Evaluation of Particle Sizing Techniques for the Implementation of the EC Definition of a Nanomaterial NanoDefine Outreach Event "Classification of Materials according to the EU Nano-Definition” Brussels: Belgium, 19.-20.09.2017
• C. Ullmann et al.: Screening methods for rapid and cost efficient distinction nano/non-nano. NanoDefine Outreach Event "Classification of Materials according to the EU Nano-Definition” Brussels: Belgium, 19.-20.09.2017
• C. Ullmann, I. Rio, D. Mehn, D. Gilliland, W. Wohlleben, R. Koeber, F. Babick: Evaluation of particle sizing with analytical centrifugaton methods. No. 059.  EuroNanoForum 2017 Valetta: Malta, 21.-23.06.2017
• J. Mielke, V.-D. Hodoroaba, F. Babick, C. Ullmann: Evaluation of Particle Sizing Techniques for the Implementation of the EC Definition of a Nanomaterial. PARTEC 2016 - International Congress on Particle Technology, Nuremberg: Germany, 19.-21.04.2016
• C. Ullmann, D. Gilliland, P. Dohanyosova, S. Weigel, P. Hole, W. Wohlleben, M. Stintz: NanoDefine Work package 4: Screening methods. Workshop "Characterization and classification of materials according to the EC nano-definition", Brussels: Belgium, 17.06.2015
• C. Ullmann, D. Gilliland, P. Dohanyosova, S. Weigel, P. Hole, W. Wohlleben, M. Stintz: NanoDefine Work package 4: Screening methods. EuroNanoForum, Riga: Latvia, 10.-12.06.2015
• Linaschke, D.; Ullmann, C.; Dani, I.; Leyens, C.; Benner, F.: Deposition of aluminium oxide passivation layers c-Si by ultrasonic spray-coating. 28th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), 2013, Paris: France, 2013, Reference: 2BV.2.33.
• Linaschke, D.; Ullmann, C.; Dani, I.; Leyens, C.; Benner, F.: Abscheidung von Passivierungsschichten auf c-Si durch Ultraschall-Sprühbeschichtung. 4. Photovoltaik-Symposium »Photovoltaik und Energiewende«, Bitterfeld-Wolfen: Germany, 2013, Reference: P5.