Multifunctional Magnetocontrollable Superwettable‐Microcilia Surface for Directional Droplet Manipulation

Abstract In nature, fluid manipulations are ubiquitous in organisms, and they are crucial for many of their vital activities. Therefore, this process has also attracted widescale research attention. However, despite significant advances in fluid transportation research over the past few decades, it...

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Main Authors: Shuang Ben, Tiantian Zhou, Han Ma, Jinjia Yao, Yuzhen Ning, Dongliang Tian, Kesong Liu, Lei Jiang
Format: Article
Language:English
Published: Wiley 2019-09-01
Series:Advanced Science
Subjects:
Online Access:https://doi.org/10.1002/advs.201900834
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author Shuang Ben
Tiantian Zhou
Han Ma
Jinjia Yao
Yuzhen Ning
Dongliang Tian
Kesong Liu
Lei Jiang
author_facet Shuang Ben
Tiantian Zhou
Han Ma
Jinjia Yao
Yuzhen Ning
Dongliang Tian
Kesong Liu
Lei Jiang
author_sort Shuang Ben
collection DOAJ
description Abstract In nature, fluid manipulations are ubiquitous in organisms, and they are crucial for many of their vital activities. Therefore, this process has also attracted widescale research attention. However, despite significant advances in fluid transportation research over the past few decades, it is still hugely challenging to achieve efficient and nondestructive droplet transportation owing to contamination effects and controllability problems in liquid transportation applications. To this end, inspired by the motile microcilia of micro‐organisms, the superhydrophobicity of lotus leaves, the underwater superoleophobicity of filefish skin, and pigeons' migration behavior, a novel manipulation strategy is developed for droplets motion. Specifically, herein, a superwettable magnetic microcilia array surface with a structure that is switchable by an external magnetic field is constructed for droplet manipulation. It is found that under external magnetic fields, the superhydrophobic magnetic microcilia array surface can continuously and directionally manipulate the water droplets in air and that the underwater superoleophobic magnetic microcilia array surface can control the oil droplets underwater. This work demonstrates that the nondestructive droplet transportation mechanism can be used for liquid transportation, droplet reactions, and micropipeline transmission, thus opening up an avenue for practical applications of droplet manipulation using intelligent microstructure surfaces.
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spelling doaj.art-08774d278348466292d186b87dcceee62022-12-21T22:41:05ZengWileyAdvanced Science2198-38442019-09-01617n/an/a10.1002/advs.201900834Multifunctional Magnetocontrollable Superwettable‐Microcilia Surface for Directional Droplet ManipulationShuang Ben0Tiantian Zhou1Han Ma2Jinjia Yao3Yuzhen Ning4Dongliang Tian5Kesong Liu6Lei Jiang7Key Laboratory of Bio‐Inspired Smart Interfacial Science and Technology, School of Chemistry Beihang University Beijing 100191 P. R. ChinaKey Laboratory of Bio‐Inspired Smart Interfacial Science and Technology, School of Chemistry Beihang University Beijing 100191 P. R. ChinaState Key Laboratory of Explosion Science and Technology Beijing Institute of Technology Beijing 100081 P. R. ChinaKey Laboratory of Bio‐Inspired Smart Interfacial Science and Technology, School of Chemistry Beihang University Beijing 100191 P. R. ChinaKey Laboratory of Bio‐Inspired Smart Interfacial Science and Technology, School of Chemistry Beihang University Beijing 100191 P. R. ChinaKey Laboratory of Bio‐Inspired Smart Interfacial Science and Technology, School of Chemistry Beihang University Beijing 100191 P. R. ChinaKey Laboratory of Bio‐Inspired Smart Interfacial Science and Technology, School of Chemistry Beihang University Beijing 100191 P. R. ChinaKey Laboratory of Bio‐Inspired Smart Interfacial Science and Technology, School of Chemistry Beihang University Beijing 100191 P. R. ChinaAbstract In nature, fluid manipulations are ubiquitous in organisms, and they are crucial for many of their vital activities. Therefore, this process has also attracted widescale research attention. However, despite significant advances in fluid transportation research over the past few decades, it is still hugely challenging to achieve efficient and nondestructive droplet transportation owing to contamination effects and controllability problems in liquid transportation applications. To this end, inspired by the motile microcilia of micro‐organisms, the superhydrophobicity of lotus leaves, the underwater superoleophobicity of filefish skin, and pigeons' migration behavior, a novel manipulation strategy is developed for droplets motion. Specifically, herein, a superwettable magnetic microcilia array surface with a structure that is switchable by an external magnetic field is constructed for droplet manipulation. It is found that under external magnetic fields, the superhydrophobic magnetic microcilia array surface can continuously and directionally manipulate the water droplets in air and that the underwater superoleophobic magnetic microcilia array surface can control the oil droplets underwater. This work demonstrates that the nondestructive droplet transportation mechanism can be used for liquid transportation, droplet reactions, and micropipeline transmission, thus opening up an avenue for practical applications of droplet manipulation using intelligent microstructure surfaces.https://doi.org/10.1002/advs.201900834directional transportationliquid manipulationmagnetic microcilia array surfacesuperwettableswitchable structures
spellingShingle Shuang Ben
Tiantian Zhou
Han Ma
Jinjia Yao
Yuzhen Ning
Dongliang Tian
Kesong Liu
Lei Jiang
Multifunctional Magnetocontrollable Superwettable‐Microcilia Surface for Directional Droplet Manipulation
Advanced Science
directional transportation
liquid manipulation
magnetic microcilia array surface
superwettable
switchable structures
title Multifunctional Magnetocontrollable Superwettable‐Microcilia Surface for Directional Droplet Manipulation
title_full Multifunctional Magnetocontrollable Superwettable‐Microcilia Surface for Directional Droplet Manipulation
title_fullStr Multifunctional Magnetocontrollable Superwettable‐Microcilia Surface for Directional Droplet Manipulation
title_full_unstemmed Multifunctional Magnetocontrollable Superwettable‐Microcilia Surface for Directional Droplet Manipulation
title_short Multifunctional Magnetocontrollable Superwettable‐Microcilia Surface for Directional Droplet Manipulation
title_sort multifunctional magnetocontrollable superwettable microcilia surface for directional droplet manipulation
topic directional transportation
liquid manipulation
magnetic microcilia array surface
superwettable
switchable structures
url https://doi.org/10.1002/advs.201900834
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