Dielectrophoresis of Macromolecules: Determination of the Diffusion Constant of Poly-γ-Benzyl-L-Glutamate

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Science  23 Jun 1972:
Vol. 176, Issue 4041, pp. 1335-1337
DOI: 10.1126/science.176.4041.1335


The translational diffusion constant of poly-γ-benzyl-L-glutamate in ethylene dichloride was measured by dielectrophoresis. The method is rapid, precise to about ± 5 percent, and yields values in good agreement with those obtained by standard methods.