Light-induced charged slippery surfaces
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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Detail(s)
Original language | English |
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Article number | eabp9369 |
Journal / Publication | Science Advances |
Volume | 8 |
Issue number | 27 |
Online published | 8 Jul 2022 |
Publication status | Published - 8 Jul 2022 |
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DOI | DOI |
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Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-85133879601&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(3955e88f-20f5-4740-a1be-56ff655013a8).html |
Abstract
Slippery lubricant-infused porous (SLIPS) and superhydrophobic surfaces have emerged as promising interfacial materials for various applications such as self-cleaning, anti-icing, and antifouling. Paradoxically, the coverage/ screening of lubricant layer on underlying rough matrix endows functionalities impossible on superhydrophobic surfaces; however, the inherent flexibility in programming droplet manipulation through tailoring structure or surface charge gradient in underlying matrix is compromised. Here, we develop a class of slippery material that harnesses the dual advantages of both solid and lubricant. This is achieved by rationally constructing a photothermal-responsive composite matrix with real-time light-induced surface charge regeneration capability, enabling photocontrol of droplets in various working scenarios. We demonstrate that this light-induced charged slippery surface (LICS) exerts photocontrol of droplets with fast speed, long distance, antigravity motion, and directionally collective motion. We further extend the LICS to biomedical domains, ranging from specific morphological hydrogel bead formation in an open environment to biological diagnosis and analysis in closed-channel microfluidics.
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Citation Format(s)
Light-induced charged slippery surfaces. / Wang, Fang; Liu, Meijin; Liu, Cong et al.
In: Science Advances, Vol. 8, No. 27, eabp9369, 08.07.2022.
In: Science Advances, Vol. 8, No. 27, eabp9369, 08.07.2022.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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