Omniphobic liquid-like surfaces

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Journal Title
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Volume Title
A2 Katsausartikkeli tieteellisessä aikakauslehdessä
Date
2023-02
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Language
en
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Nature Reviews Chemistry
Abstract
Liquid-repellent surfaces, especially smooth solid surfaces with covalently grafted flexible polymer brushes or alkyl monolayers, are the focus of an expanding research area. Surface-tethered flexible species are highly mobile at room temperature, giving solid surfaces a unique liquid-like quality and unprecedented dynamical repellency towards various liquids regardless of their surface tension. Omniphobic liquid-like surfaces (LLSs) are a promising alternative to air-mediated superhydrophobic or superoleophobic surfaces and lubricant-mediated slippery surfaces, avoiding fabrication complexity and air/lubricant loss issues. More importantly, the liquid-like molecular layer controls many important interface properties, such as slip, friction and adhesion, which may enable novel functions and applications that are inaccessible with conventional solid coatings. In this Review, we introduce LLSs and their inherent dynamic omniphobic mechanisms. Particular emphasis is given to the fundamental principles of surfacedesign and the consequences of the liquid-like nature for task-specific applications. We also provide an overview of the key challenges and opportunities for omniphobic LLSs. [Figure not available: see fulltext.]
Description
Funding Information: L.C., S.H. and X.T. acknowledge financial support from the National Natural Science Foundation of China (grants 22072185, 21872176 and 12072381), the Guangdong Basic and Applied Basic Research Foundation (grant 2021A1515110221), the Pearl River Talents Program (grant 2017GC010671) and the Natural Science Foundation of Guangdong Province (grant 2019A1515012030). R.H.A.R. acknowledges funding from the Academy of Finland Center of Excellence Program (2022–2029) in Life-Inspired Hybrid Materials (LIBER) (project number 346109) and Academy Project (project number 342169) and from the European Research Council for funding the Consolidator Grant SuperRepel (grant agreement no. 725513). | openaire: EC/H2020/725513/EU//SuperRepel
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Citation
Chen , L , Huang , S , Ras , R H A & Tian , X 2023 , ' Omniphobic liquid-like surfaces ' , Nature Reviews : Chemistry , vol. 7 , no. 2 , pp. 123-137 . https://doi.org/10.1038/s41570-022-00455-w