Journal
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
Volume 108, Issue -, Pages 183-194Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.trac.2018.09.001
Keywords
Biological/chemical sensing; Special wettable surface; Contact angle; Patterned wettability; Superhydrophobicity
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Funding
- National Basic Research Program of China (973 Program) [2015CB932600, 2013CB933000, 2016YFF0100800]
- National Natural Science Foundation of China [21375042, 21405054, 21525523, 21574048, 21874121, 31800829]
- National Key R&D Program of China [2016YFF0100800, 2017YFA0208000]
- Fok Ying-Tong Education Foundation, China [151011]
- China Postdoctoral Science Foundation [2017M622402]
- Natural Science Foundation of Shandong Province [ZR2018BB054]
- 1000 Young Talent
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Special wettable surfaces (SWS, i.e., surfaces with special wettability) are less common in daily life. Some of the frequently studied SWS include those surfaces of homogeneous wettability which are superhydrophobic, superoleophobic, or omniphobic. Additionally, surfaces of patterned wettability which are partially hydrophilic and partially hydrophobic have also been widely investigated. Besides their wide applications in self-cleaning, anti-fogging, water-harvesting, anti-icing, water-oil separation and anti-corrosion, the SWS have also been emergingly utilized in biological and chemical sensing in recent years. This review focuses on the SWS-based sensing applications, and classified them into electrical/electrochemical assays, surface-enhanced Raman scattering (SERS) assays, fluorescent/colorimetric assays, and visual assays (i.e. assays based on contact angle). After the main characteristics and performances of these applications were briefly summarized, areas to be improved and direction for future development of this research topic were discussed at the end of the review. (c) 2018 Published by Elsevier B.V.
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