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Issue 10, 2010
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Analytical ultracentrifugation of colloids

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Abstract

In this contribution the use of Analytical Ultracentrifugation (AUC) for the modern analysis of colloids is reviewed. Since AUC is a fractionation technique, distributions of the sedimentation coefficient, particle size and shape, molar mass and density can be obtained for particle sizes spanning the entire colloidal range. The Ångström resolution and the reliable statistics with which particle size distributions can be obtained from analytical ultracentrifugation makes this a high resolution analysis technique for the characterization of nanoparticles in solution or suspension. Several examples showing successful applications of AUC to complex problems in colloid science are given to illustrate the broad range and versatility of questions that can be answered by AUC experiments.

Graphical abstract: Analytical ultracentrifugation of colloids

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Article information


Submitted
25 Mar 2010
Accepted
21 May 2010
First published
06 Sep 2010

Nanoscale, 2010,2, 1849-1869
Article type
Review Article

Analytical ultracentrifugation of colloids

K. L. Planken and H. Cölfen, Nanoscale, 2010, 2, 1849
DOI: 10.1039/C0NR00215A

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