A hydrogel-actuated environmentally sensitive microvalve for active flow control

@inproceedings{Baldi2003AHE,
  title={A hydrogel-actuated environmentally sensitive microvalve for active flow control},
  author={Antonio Baldi and Yuandong Gu and Paul E. Loftness and Ronald A. Siegel and Babak Ziaie},
  year={2003}
}
This paper reports on the fabrication and test of a hydrogel-actuated microvalve that responds to changes in the concentration of specific chemical species in an external liquid environment. The microvalve consists of a thin hydrogel, sandwiched between a stiff porous membrane and a flexible silicone rubber diaphragm. Swelling and deswelling of the hydrogel, which results from the diffusion of chemical species through the porous membrane is accompanied by the deflection of the diaphragm and… CONTINUE READING

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