Nanotech 2003 Vol. 1
Nanotech 2003 Vol. 1
Technical Proceedings of the 2003 Nanotechnology Conference and Trade Show, Volume 1

Bio Micro Systems Chapter 7

Electrically Triggered Hydrogels: Mathematical Models and Simulations

Authors: A.N. Chatterjee, S.K. De and N.R. Aluru

Affilation: University of Illinois, United States

Pages: 130 - 133

Keywords: electro-responsive, hydrogels, micro-actuators, micro-valves

Environmentally sensitive hydrogels have enormous potential in various applications. Ionic polymer gels have been shown to respond to a number of different stimuli like pH and electric field. One of the major advantages of electro-responsive gels (E-gels) over pH responsive gels (pH-gels) is the much smaller response time of the E-gels. The electrically triggered hydrogels can be used as actuators and components in microfluidic systems. The structure of an E-gel is similar to that of a pH-gel. The deformation of an ionic polymer gel, immersed in a salt solution, when an electric field is applied is primarily due to the osmotic stress, which arises due to the difference in the concentration of the ions inside and outside the hydrogel.

ISBN: 0-9728422-0-9
Pages: 560

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