Independent optical control of microfluidic valves formed from optomechanically responsive nanocomposite hydrogels


Journal Article

Independent optical control of two valves at a junction within a microfluidic device formed from a optomechanically responsive nanocomposite hydrogels was analyzed. Nanocomposite-hydrogel valves were formed by photopolymerizing the monomer mixture, with the inclusion of the appropriate nanoparticles, within a microfluidic device at a T-junction. It was shown that the lower critical solution temperature (LCST) of the temperature-responsive material could be tailored by altering the copolymer composition. By raising the LCST, one could also use absorbing materials with slightly overlapping absorption curves, since slight heating in non-targeted valve materials would not result in a phase change, allowing the valve to remain close.

Full Text

Duke Authors

Cited Authors

  • Sershen, SR; Mensing, GA; Ng, M; Halas, NJ; Beebe, DJ; West, JL

Published Date

  • June 6, 2005

Published In

Volume / Issue

  • 17 / 11

Start / End Page

  • 1366 - 1368

International Standard Serial Number (ISSN)

  • 0935-9648

Digital Object Identifier (DOI)

  • 10.1002/adma.200401239

Citation Source

  • Scopus