A microfluidic valves design comprising nanolayered thermoresponsive polymer-grafted capillaries was discussed. Thermoresponsive wettability changes for polymer-grafted capillary surfaces were determined using water-meniscus heights within capillaries. It was found that the inner surfaces of glass microcapillaries was modified with grafted polymers through surface-immobilized azo-initiated radical polymerization in the presence of a crosslinker and through electron-beam-irradiated polymerization. It was also found that temperature-dependent fluid dynamics with microchannels were evaluated during temperature-induced hydrophilic/hydrophobic polymer-graft alterations.
ASJC Scopus subject areas
- Materials Science(all)