Journal
CHEMICAL SOCIETY REVIEWS
Volume 51, Issue 13, Pages 5452-5497Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cs00255h
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Funding
- Ministry of Electronics and Information Technology [5(1)/2022-NANO]
- DBT [BT/PR45283/NER/95/1919/2022]
- Alexander von Humboldt Foundation [1216042]
- Department of Chemistry
- CIF
- CFN
- SHST
- Indian Institute of Technology-Guwahati
- MoE
- CSIR
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Chemistry and topography are two tools for customizing bio-inspired liquid wettability. While topography has been the dominant approach in the past, the emergence of chemical modulation allows for more controlled tailoring of liquid wettability. This review summarizes various reports that highlight the importance of both chemistry and topography in modulating bio-inspired wettability and discusses the advantages of chemical modulation over topographical variation.
Chemistry and topography are the two distinct available tools for customizing different bio-inspired liquid wettability including superhydrophobicity, superamphiphobicity, underwater superoleophobicity, underwater superoleophilicity, and liquid infused slippery property. In nature, various living species possessing super and special liquid wettability inherently comprises of distinctly patterned surface topography decorated with low/high surface energy. Inspired from the topographically diverse natural species, the variation in surface topography has been the dominant approach for constructing bio-inspired antiwetting interfaces. However, recently, the modulation of chemistry has emerged as a facile route for the controlled tailoring of a wide range of bio-inspired liquid wettability. This review article aims to summarize the various reports published over the years that has elaborated the distinctive importance of both chemistry and topography in imparting and modulating various bio-inspired wettability. Moreover, this article outlines some obvious advantages of chemical modulation approach over topographical variation. For example, the strategic use of the chemical approach has allowed the facile, simultaneous, and independent tailoring of both liquid wettability and other relevant physical properties. We have also discussed the design of different antiwetting patterned and stimuli-responsive interfaces following the strategic and precise alteration of chemistry for various prospective applications.
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