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 fabric...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-12-01
|
| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202204891 |
| _version_ | 1811301525050359808 |
|---|---|
| author | Lingxiao Wang Kai Yin Qinwen Deng Qiaoqiao Huang Jun He Ji‐An Duan |
| author_facet | Lingxiao Wang Kai Yin Qinwen Deng Qiaoqiao Huang Jun He Ji‐An Duan |
| author_sort | Lingxiao Wang |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-13T07:11:38Z |
| format | Article |
| id | doaj.art-b44e307afe1e4d21b3fc562d05ebbffa |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-04-13T07:11:38Z |
| publishDate | 2022-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-b44e307afe1e4d21b3fc562d05ebbffa2022-12-22T02:56:52ZengWileyAdvanced Science2198-38442022-12-01934n/an/a10.1002/advs.202204891Wetting Ridge‐Guided Directional Water Self‐TransportLingxiao Wang0Kai Yin1Qinwen Deng2Qiaoqiao Huang3Jun He4Ji‐An Duan5Hunan Key Laboratory of Nanophotonics and Devices School of Physics and Electronics Central South University Changsha 410083 P. R. ChinaHunan Key Laboratory of Nanophotonics and Devices School of Physics and Electronics Central South University Changsha 410083 P. R. ChinaHunan Key Laboratory of Nanophotonics and Devices School of Physics and Electronics Central South University Changsha 410083 P. R. ChinaHunan Key Laboratory of Nanophotonics and Devices School of Physics and Electronics Central South University Changsha 410083 P. R. ChinaHunan Key Laboratory of Nanophotonics and Devices School of Physics and Electronics Central South University Changsha 410083 P. R. ChinaThe State Key Laboratory of High Performance and Complex Manufacturing College of Mechanical and Electrical Engineering Central South University Changsha 410083 P. R. ChinaAbstract 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.https://doi.org/10.1002/advs.202204891directional water self‐transportfemtosecond laserheterogeneous superwettabilitylubricant infusionwetting ridge |
| spellingShingle | Lingxiao Wang Kai Yin Qinwen Deng Qiaoqiao Huang Jun He Ji‐An Duan Wetting Ridge‐Guided Directional Water Self‐Transport Advanced Science directional water self‐transport femtosecond laser heterogeneous superwettability lubricant infusion wetting ridge |
| title | Wetting Ridge‐Guided Directional Water Self‐Transport |
| title_full | Wetting Ridge‐Guided Directional Water Self‐Transport |
| title_fullStr | Wetting Ridge‐Guided Directional Water Self‐Transport |
| title_full_unstemmed | Wetting Ridge‐Guided Directional Water Self‐Transport |
| title_short | Wetting Ridge‐Guided Directional Water Self‐Transport |
| title_sort | wetting ridge guided directional water self transport |
| topic | directional water self‐transport femtosecond laser heterogeneous superwettability lubricant infusion wetting ridge |
| url | https://doi.org/10.1002/advs.202204891 |
| work_keys_str_mv | AT lingxiaowang wettingridgeguideddirectionalwaterselftransport AT kaiyin wettingridgeguideddirectionalwaterselftransport AT qinwendeng wettingridgeguideddirectionalwaterselftransport AT qiaoqiaohuang wettingridgeguideddirectionalwaterselftransport AT junhe wettingridgeguideddirectionalwaterselftransport AT jianduan wettingridgeguideddirectionalwaterselftransport |