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Effective Size and Zeta Potential of Nanorods by Ferguson Analysis

Author(s)
Park, Sunho; Sinha, Niraj; Hamad-Schifferli, Kimberly
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.

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Abstract
The effective hydrodynamic size and free mobility of particles of varying aspect ratio were evaluated by Ferguson analysis of gel electrophoresis. The ligand layer thickness was estimated from the difference between the effective size and the size of the metal core from TEM imaging. The zeta potential of the particles was calculated from the Ferguson analysis result by applying conventional electrophoresis theories for spheres and cylinders. The results show that Henry’s solution for spherical particles can be used to obtain the zeta potential of cylindrical particles without requiring the use of TEM for size analysis.
Date issued
2010-07
URI
http://hdl.handle.net/1721.1/65164
Department
Massachusetts Institute of Technology. Department of Biological Engineering; Massachusetts Institute of Technology. Department of Mechanical Engineering
Journal
Langmuir
Publisher
American Chemical Society
Citation
Park, Sunho, Niraj Sinha, and Kimberly Hamad-Schifferli. “Effective Size and Zeta Potential of Nanorods by Ferguson Analysis.” Langmuir 26.16 (2010) : 13071-13075.
Version: Author's final manuscript
ISSN
0743-7463
1520-5827

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