Abstract
Asymmetrical motion is essential for a cilium to produce a net flow in a low-Reynolds number regime. Here, we report that electrically actuated cilium having an asymmetrical joint structure shows an asymmetrical motion due to induced charge electro-osmosis (ICEO). In particular, we measured asymmetrical sweep area due to the forward and recovery strokes of our ICEO cilium and evaluated pumping performance. Our findings should be applied to innovative biomedical microfluidic systems that contribute to maintaining people’s health.
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