Analytical ultracentrifugation in colloid and polymer science : new possibilities and perspectives after 100 years

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2023
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Colloid and Polymer Science. Springer. 2023, 301(7), pp. 821-849. ISSN 0303-402X. eISSN 1435-1536. Available under: doi: 10.1007/s00396-023-05130-0
Zusammenfassung

Analytical ultracentrifugation (AUC) is a classical polymer and colloid analysis technique invented by Theodor Svedberg 100 years ago. Modern hard- and software and powerful computers make it now possible to develop the methodology beyond what was possible with this technique before. This perspective aims to describe new possibilities, which extend the possibilities of AUC beyond the classical repertoire of the determination of distributions of sedimentation coefficient, particle size, and molar mass as well as stoichiometries and interaction constants of interacting systems. High-resolution simultaneous characterization of particle size and optical property distributions, investigation of nucleation by reaction in the AUC cell, characterization of particle interactions at a very high concentration, and characterization of complex fluids or osmotic pressures over large concentration ranges even crossing phase boundaries are among the discussed topics. They show that even after 100 years of successful application, AUC still has much yet unexplored potential in colloid and polymer science. Graphical Abstract This perspective paper spans from the days of invention of analytical ultracentrifugation to now including nonmainstream methodology and instrumentation, which has a huge potential for the future. This includes multiwavelength detectors, high-resolution particle size distributions, chemical reactions in the ultracentrifuge, high-concentration work, osmotic pressure distributions, and characterization of complex fluids.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
540 Chemie
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Analytical ultracentrifugation, Sedimentation velocity, Sedimentation equilibrium, Particle size distribution, Multiwavelength detector, Complex fluids, Nucleation, Self-assembly
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ISO 690CÖLFEN, Helmut, 2023. Analytical ultracentrifugation in colloid and polymer science : new possibilities and perspectives after 100 years. In: Colloid and Polymer Science. Springer. 2023, 301(7), pp. 821-849. ISSN 0303-402X. eISSN 1435-1536. Available under: doi: 10.1007/s00396-023-05130-0
BibTex
@article{Colfen2023-07Analy-67472,
  year={2023},
  doi={10.1007/s00396-023-05130-0},
  title={Analytical ultracentrifugation in colloid and polymer science : new possibilities and perspectives after 100 years},
  number={7},
  volume={301},
  issn={0303-402X},
  journal={Colloid and Polymer Science},
  pages={821--849},
  author={Cölfen, Helmut}
}
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