Wetting Ridge‐Guided Directional Water Self‐Transport
Abstract: Directional water self‐transport plays a crucial role in diverse applications such as biosensing and water harvesting. Despite extensive progress, current strategies for directional water self‐transport are restricted to a short self‐driving distance, single function, and complicated fabrication methods. Here, a lubricant‐infused heterogeneous superwettability surface (LIHSS) for directional water self‐transport is proposed on polyimide (PI) film through femtosecond laser direct writing and lubricant infusion. By tuning the parameters of the femtosecond laser, the wettability of PI film can be transformed into superhydrophobic or superhydrophilic. After trapping water droplets on the superhydrophilic surface and depositing excess lubricant, the asymmetrical wetting ridge drives water droplets by an attractive capillary force on the LIHSS. Notably, the maximum droplet self‐driving distance can approach ≈3 mm, which is nearly twice as long as the previously reported strategies for direction water self‐transport. Significantly, it is demonstrated that this strategy makes it possible to achieve water self‐transport, anti‐gravity pumping, and chemical microreaction on a tilted LIHSS. This work provides an efficient method to fabricate a promising platform for realizing directional water self‐transport.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Wetting Ridge‐Guided Directional Water Self‐Transport ; day:17 ; month:10 ; year:2022 ; extent:10
Advanced science ; (17.10.2022) (gesamt 10)
- Creator
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Wang, Lingxiao
Yin, Kai
Deng, Qinwen
Huang, Qiaoqiao
He, Jun
Duan, Ji‐An
- DOI
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10.1002/advs.202204891
- URN
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urn:nbn:de:101:1-2022101815465787415154
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:33 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Wang, Lingxiao
- Yin, Kai
- Deng, Qinwen
- Huang, Qiaoqiao
- He, Jun
- Duan, Ji‐An
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