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Length-scale dependent transport properties of colloidal and protein solutions for prediction of crystal nucleation rates.

Authors
  • Kalwarczyk, Tomasz
  • Sozanski, Krzysztof
  • Jakiela, Slawomir
  • Wisniewska, Agnieszka
  • Kalwarczyk, Ewelina
  • Kryszczuk, Katarzyna
  • Hou, Sen
  • Holyst, Robert
Type
Published Article
Journal
Nanoscale
Publisher
The Royal Society of Chemistry
Publication Date
Sep 07, 2014
Volume
6
Issue
17
Pages
10340–10346
Identifiers
DOI: 10.1039/c4nr00647j
PMID: 25074030
Source
Medline
License
Unknown

Abstract

We propose a scaling equation describing transport properties (diffusion and viscosity) in the solutions of colloidal particles. We apply the equation to 23 different systems including colloids and proteins differing in size (range of diameters: 4 nm to 1 μm), and volume fractions (10(-3)-0.56). In solutions under study colloids/proteins interact via steric, hydrodynamic, van der Waals and/or electrostatic interactions. We implement contribution of those interactions into the scaling law. Finally we use our scaling law together with the literature values of the barrier for nucleation to predict crystal nucleation rates of hard-sphere like colloids. The resulting crystal nucleation rates agree with existing experimental data.

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