Shape-programmable artificial cilia for microfluidics

Bivas Panigrahi, Vignesh Sahadevan, Chia Yuan Chen

研究成果: Article同行評審

摘要

The artificial ciliary motion has been known not to be hydrodynamically optimal, limiting their associated applications in the microscale flow domain. One of the major hurdles of contemporary artificial cilia is its structural rigidity, which restricts their flexibility. To address this issue, this work proposed a shape-programmable artificial cilia design with distinctive polydimethylsiloxane (PDMS) and magnetic segments distributed throughout the structure, which provided precise control for time-spatial modulation of the whole artificial cilia structure under external magnetic actuation. For the fabrication of the proposed multi-segment artificial cilia, a facile microfabrication process with stepwise mold blocking followed by the PDMS and magnetic composite casting was adopted. The hydrodynamic analysis further elucidated that the proposed artificial cilia beating induced significant flow disturbance within the flow field, and the associated application was demonstrated through an efficient mixing operation.

原文English
文章編號103367
期刊iScience
24
發行號12
DOIs
出版狀態Published - 2021 十二月 17

All Science Journal Classification (ASJC) codes

  • 多學科

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