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Novel Electrode Shape to Reduce Heating in Light-Actuated Digital Microfluidics

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Abstract

A novel, ring-shaped optical electrode is employed to reduce heating in light-actuated digital microfluidics. Using thermo-sensitive hydrogel microspheres, the temperature rise is measured to be 0.35°C, about 15x lower than those using square electrodes.

© 2011 Optical Society of America

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