Shape-programmable artificial cilia for microfluidics

Summary: 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 iss...

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Autores principales: Bivas Panigrahi, Vignesh Sahadevan, Chia-Yuan Chen
Formato: article
Lenguaje:EN
Publicado: Elsevier 2021
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Acceso en línea:https://doaj.org/article/0a90ce540ef44c4e896ee667b4784791
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spelling oai:doaj.org-article:0a90ce540ef44c4e896ee667b47847912021-11-18T04:51:10ZShape-programmable artificial cilia for microfluidics2589-004210.1016/j.isci.2021.103367https://doaj.org/article/0a90ce540ef44c4e896ee667b47847912021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2589004221013389https://doaj.org/toc/2589-0042Summary: 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.Bivas PanigrahiVignesh SahadevanChia-Yuan ChenElsevierarticleFluidicsMaterials in biotechnologyMagnetic materialsScienceQENiScience, Vol 24, Iss 12, Pp 103367- (2021)
institution DOAJ
collection DOAJ
language EN
topic Fluidics
Materials in biotechnology
Magnetic materials
Science
Q
spellingShingle Fluidics
Materials in biotechnology
Magnetic materials
Science
Q
Bivas Panigrahi
Vignesh Sahadevan
Chia-Yuan Chen
Shape-programmable artificial cilia for microfluidics
description Summary: 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.
format article
author Bivas Panigrahi
Vignesh Sahadevan
Chia-Yuan Chen
author_facet Bivas Panigrahi
Vignesh Sahadevan
Chia-Yuan Chen
author_sort Bivas Panigrahi
title Shape-programmable artificial cilia for microfluidics
title_short Shape-programmable artificial cilia for microfluidics
title_full Shape-programmable artificial cilia for microfluidics
title_fullStr Shape-programmable artificial cilia for microfluidics
title_full_unstemmed Shape-programmable artificial cilia for microfluidics
title_sort shape-programmable artificial cilia for microfluidics
publisher Elsevier
publishDate 2021
url https://doaj.org/article/0a90ce540ef44c4e896ee667b4784791
work_keys_str_mv AT bivaspanigrahi shapeprogrammableartificialciliaformicrofluidics
AT vigneshsahadevan shapeprogrammableartificialciliaformicrofluidics
AT chiayuanchen shapeprogrammableartificialciliaformicrofluidics
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