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  3. Department Chemical and Biological Engineering

Institute of Particle Technology

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  6. Multiwavelength emission characterization of nanoparticles by means of a novel analytical ultracentrifuge

Multiwavelength emission characterization of nanoparticles by means of a novel analytical ultracentrifuge

In page navigation: Research
  • Research Groups
    • Interface Engineering and Particle Technology (Peukert Group)
      • Additive Manufacturing
        • Liquid Phase Production of Functional Polymer Particles (CRC 814 Project A1)
        • Modification and Functionalization of Powders in Gas Phase (SFB 814 Project A2)
        • Quality assurance system for powders used in selective laser beam melting of polymers (SFB 814 Transfer Project T1)
      • Advanced Colloid Characterization
        • Multidimensional analysis of nanoparticulate structures using analytical ultracentrifugation with integrated multiwavelength detection
        • Development of multidimensional analysis of particulate systems using analytical centrifugation
        • Multiwavelength emission characterization of nanoparticles by means of a novel analytical ultracentrifuge
      • Characterization of Carbon Dots
      • Comminution
      • Surfaces and Interfaces
        • Proteins at Interfaces
        • Emulsions
        • Surface Functionalization, Degradation, and Corrosion
      • Synthesis, Surface Modification and In Situ Analysis
        • In situ monitoring of particle formation
    • Nanostructured Particles (Klupp Taylor Group)
    • Self-Assembled Materials (Vogel Group)
    • Solids Processing (Bück Group)
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Multiwavelength emission characterization of nanoparticles by means of a novel analytical ultracentrifuge

Contact:

Wawra, Simon (M.Sc.)

Short description:

Multiwavelength emission characterization of nanoparticles by means of a novel analytical ultracentrifuge

 

Particle properties depend on dispersity (particle size, shape, surface and inner structure) and composition. In order to fully exploit these property functions in technical applications, comprehensive multi-dimensional characterization methods are required. Developments in recent years in the field of analytical ultracentrifugation with integrated multi-wavelength absorption optics have already demonstrated the unmatched resolution, accuracy and reproducibility of size, shape, density and spectral absorption property characterization. Objective of this project is the development of a novel emission detector within an analytical ultracentrifuge. The separation of the particles during sedimentation allows the determination of dispersity-dependent (e.g. size, shape, density) emission properties. The new method is applicable for quantum dots, new 2D materials and proteins and their aggregates.

Recent Publications

2023

  • Frank, U., Drobek, D., Sánchez-Iglesias, A., Wawra, S., Nees, N., Walter, J.,... Peukert, W. (2023). Determination of 2D Particle Size Distributions in Plasmonic Nanoparticle Colloids via Analytical Ultracentrifugation: Application to Gold Bipyramids. ACS nano. https://dx.doi.org/10.1021/acsnano.2c12257

2021

  • Frank, U., Uttinger, M., Wawra, S., Lübbert, C., & Peukert, W. (2021). Progress in Multidimensional Particle Characterization. KONA Powder and Particle Journal. https://dx.doi.org/10.14356/kona.2022005

2020

  • Furat, O., Frank, U., Weber, M., Wawra, S., Peukert, W., & Schmidt, V. (2020). Estimation of bivariate probability distributions of nanoparticle characteristics, based on univariate measurements. Inverse Problems in Science and Engineering. https://dx.doi.org/10.1080/17415977.2020.1849181
  • Uttinger, M., Boldt, S., Wawra, S., Freiwald, T., Damm, C., Walter, J.,... Peukert, W. (2020). New Prospects for Particle Characterization Using Analytical Centrifugation with Sector-Shaped Centerpieces. Particle & Particle Systems Characterization. https://dx.doi.org/10.1002/ppsc.202000108
  • Uttinger, M., Heyn, T.R., Jandt, U., Wawra, S., Winzer, B., Keppler, J.K., & Peukert, W. (2020). Measurement of length distribution of beta-lactoglobulin fibrils by multiwavelength analytical ultracentrifugation. European Biophysics Journal. https://dx.doi.org/10.1007/s00249-020-01421-4

2019

  • Frank, U., Wawra, S., Pflug, L., & Peukert, W. (2019). Multidimensional Particle Size Distributions and Their Application to Nonspherical Particle Systems in Two Dimensions. Particle & Particle Systems Characterization. https://dx.doi.org/10.1002/ppsc.201800554
  • Uttinger, M., Wawra, S., Guckeisen, T., Walter, J., Bear, A., Thajudeen, T.,... Peukert, W. (2019). A Comprehensive Brownian Dynamics Approach for the Determination of Non-ideality Parameters from Analytical Ultracentrifugation. Langmuir. https://dx.doi.org/10.1021/acs.langmuir.9b01916
  • Wawra, S., Onishchukov, G., Maranska, M., Eigler, S., Walter, J., & Peukert, W. (2019). A multiwavelength emission detector for analytical ultracentrifugation. Nanoscale Advances. https://dx.doi.org/10.1039/C9NA00487D

2018

  • Wawra, S., Pflug, L., Thajudeen, T., Kryschi, C., Stingl, M., & Peukert, W. (2018). Determination of the two-dimensional distributions of gold nanorods by multiwavelength analytical ultracentrifugation. Nature Communications, 9(1). https://dx.doi.org/10.1038/s41467-018-07366-9
  • Wawra, S., Thoma, M., Walter, J., Lübbert, C., Thajudeen, T., Damm, C., & Peukert, W. (2018). Ionomer and protein size analysis by analytical ultracentrifugation and electrospray scanning mobility particle sizer. European Biophysics Journal, 47(7), 777-787. https://dx.doi.org/10.1007/s00249-018-1314-2

2017

  • Nacken, T., Halbig, C.E., Wawra, S., Damm, C., Romeis, S., Walter, J.,... Peukert, W. (2017). Structural factors controlling size reduction of graphene oxide in liquid processing. Carbon, 125, 360-369. https://dx.doi.org/10.1016/j.carbon.2017.09.066
  • Uttinger, M., Walter, J., Thajudeen, T., Wawra, S., & Peukert, W. (2017). Brownian dynamics simulations of analytical ultracentrifugation experiments exhibiting hydrodynamic and thermodynamic non-ideality. Nanoscale, 9(45), 17770-17780. https://dx.doi.org/10.1039/c7nr06583c
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