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Science 29 October 1982:
Vol. 218. no. 4571, pp. 467 - 469
DOI: 10.1126/science.218.4571.467
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Articles

Collapse of Gels in an Electric Field

TOYOICHI TANAKA 1, IZUMI NISHIO 1, SHAO-TANG SUN 1, and SHIZUE UENO-NISHIO 1

1 Department of Physics and Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge 02139

An infinitesimal change in electric potential across a polyelectrolyte gel produces a discrete, reversible volume change. The volume of the collapsed gel can be several hundred times smaller than that of the swollen gel.

Submitted on January 4, 1982
Revised on June 1, 1982


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