Independent Optical Control of Microfluidic Valves Formed from Optomechanically Responsive Nanocomposite Hydrogels.

Sershen, S R; Mensing, G A; Ng, M; Halas, N J; Beebe, D J; West, J L · Adv Mater · 2005

basic_science · Level V

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Abstract

Independent optical control of microfluidic valves formed from optomechanically responsive nanocomposite hydrogels is achieved using strongly absorbing Au nanoparticles or nanoshells embedded within a thermally responsive polymer. Valves formed from composites with different nanoparticles could be independently controlled by changing the illumination wavelength.