Micro/nanofluidic transport by special fibers deposited by electrohydrodynamic direct-writing

Recently micro/nanofluidic transportation is important in many natural and engineering processes, such as water collection, fluid patterning and microfluidic chip. But the natural microstructures for fluid transportation are usually difficult to manufacture and adjust. Here we find that some fibers...

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Main Authors: Shiqiong Wang, Xuecui Mei, Shihu Wang, Bing Xu
Format: Article
Language:English
Published: Elsevier 2023-01-01
Series:Materials & Design
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0264127522011418
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author Shiqiong Wang
Xuecui Mei
Shihu Wang
Bing Xu
author_facet Shiqiong Wang
Xuecui Mei
Shihu Wang
Bing Xu
author_sort Shiqiong Wang
collection DOAJ
description Recently micro/nanofluidic transportation is important in many natural and engineering processes, such as water collection, fluid patterning and microfluidic chip. But the natural microstructures for fluid transportation are usually difficult to manufacture and adjust. Here we find that some fibers (the diameters < 10 μm) deposited by electrohydrodynamic direct-writing(EDW) can be directly used for micro/nanofluidic transportation due to the geometries of fibers. The liquid paraffin (its minimum width < 100 nm) can transport along the circular fiber because of the wedge microcavities formed by circular fiber and substrate. Ultrafast directional water transport (about 22 mm/s) has been achieved by oblique elliptic fiber array which has been placed at a distance of 300 μm above the substrate. Moreover, we found that the contact angles of the test liquids on the substrates and on the fiber materials also play a crucial role in this structure. So electrowetting has been used to change the contact angles of water on the substrate to fast switch (response time < 0.4 s) direction of water transport. We think electrohydrodynamic direct-writing the fibers with various geometries opens up new low-cost, high efficiency, fast and accurate pathways to realize fabric-based wearable microfluidic device.
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spelling doaj.art-441fb57381c641ad9aa7d2b17ba6d6322023-01-30T04:12:22ZengElsevierMaterials & Design0264-12752023-01-01225111518Micro/nanofluidic transport by special fibers deposited by electrohydrodynamic direct-writingShiqiong Wang0Xuecui Mei1Shihu Wang2Bing Xu3Yangtze Normal University, Chonging, ChinaHarbin Institute of Technology, Shenzhen Campus, China; School of Aerospace Engineering, Xiamen University, Xiamen, ChinaYangtze Normal University, Chonging, China; School of Aerospace Engineering, Xiamen University, Xiamen, China; Corresponding author.School of Aerospace Engineering, Xiamen University, Xiamen, China; Department of Mechanical Engineering, Chao Hu University, Hefei, ChinaRecently micro/nanofluidic transportation is important in many natural and engineering processes, such as water collection, fluid patterning and microfluidic chip. But the natural microstructures for fluid transportation are usually difficult to manufacture and adjust. Here we find that some fibers (the diameters < 10 μm) deposited by electrohydrodynamic direct-writing(EDW) can be directly used for micro/nanofluidic transportation due to the geometries of fibers. The liquid paraffin (its minimum width < 100 nm) can transport along the circular fiber because of the wedge microcavities formed by circular fiber and substrate. Ultrafast directional water transport (about 22 mm/s) has been achieved by oblique elliptic fiber array which has been placed at a distance of 300 μm above the substrate. Moreover, we found that the contact angles of the test liquids on the substrates and on the fiber materials also play a crucial role in this structure. So electrowetting has been used to change the contact angles of water on the substrate to fast switch (response time < 0.4 s) direction of water transport. We think electrohydrodynamic direct-writing the fibers with various geometries opens up new low-cost, high efficiency, fast and accurate pathways to realize fabric-based wearable microfluidic device.http://www.sciencedirect.com/science/article/pii/S0264127522011418Micro/NanofluidicsElectrohydrodynamic direct-writingShaped-fiberDirectional liquid transportationElectrowetting
spellingShingle Shiqiong Wang
Xuecui Mei
Shihu Wang
Bing Xu
Micro/nanofluidic transport by special fibers deposited by electrohydrodynamic direct-writing
Materials & Design
Micro/Nanofluidics
Electrohydrodynamic direct-writing
Shaped-fiber
Directional liquid transportation
Electrowetting
title Micro/nanofluidic transport by special fibers deposited by electrohydrodynamic direct-writing
title_full Micro/nanofluidic transport by special fibers deposited by electrohydrodynamic direct-writing
title_fullStr Micro/nanofluidic transport by special fibers deposited by electrohydrodynamic direct-writing
title_full_unstemmed Micro/nanofluidic transport by special fibers deposited by electrohydrodynamic direct-writing
title_short Micro/nanofluidic transport by special fibers deposited by electrohydrodynamic direct-writing
title_sort micro nanofluidic transport by special fibers deposited by electrohydrodynamic direct writing
topic Micro/Nanofluidics
Electrohydrodynamic direct-writing
Shaped-fiber
Directional liquid transportation
Electrowetting
url http://www.sciencedirect.com/science/article/pii/S0264127522011418
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AT xuecuimei micronanofluidictransportbyspecialfibersdepositedbyelectrohydrodynamicdirectwriting
AT shihuwang micronanofluidictransportbyspecialfibersdepositedbyelectrohydrodynamicdirectwriting
AT bingxu micronanofluidictransportbyspecialfibersdepositedbyelectrohydrodynamicdirectwriting