Simple nanodroplet templating of functional surfaces with tailored wettability and microstructures

Peng, S and Zhang, X 2017, 'Simple nanodroplet templating of functional surfaces with tailored wettability and microstructures', Chemistry - An Asian Journal, vol. 12, no. 13, pp. 1538-1544.


Document type: Journal Article
Collection: Journal Articles

Title Simple nanodroplet templating of functional surfaces with tailored wettability and microstructures
Author(s) Peng, S
Zhang, X
Year 2017
Journal name Chemistry - An Asian Journal
Volume number 12
Issue number 13
Start page 1538
End page 1544
Total pages 7
Publisher Wiley
Abstract Recently, solvent exchange has been demonstrated as a simple solution-based approach for the controlled formation of surface nanodroplets over large areas. The as-formed surface nanodroplets provide new opportunities for a wide range of droplet-based applications. Herein, it is demonstrated that surface nanodroplets can be used as versatile structural templates for the fabrication of functional surfaces with tailored wettability and morphology. Guided by the microstructural and wetting properties of desert beetle's back and cactus spine, two types of functional surfaces have been prepared. The first biomimetic surface of desert beetle's back, with hydrophilic lumps on a hydrophobic background, was obtained by independent selective surface modification of polymerized surface nanodroplets and the background surface. The second surface, with anisotropic wetting microstructures, was fabricated by controlled deposition of droplets on the rim of polymer lenses. The results showed systematic improvement of wettability and efficiency of water collection by using the as-prepared biomimetic surfaces, compared with substrates without the designed microstructures. This work demonstrates surface nanodroplets as a new type of template in the design and preparation of functional surfaces with controlled wettability and morphology.
Subject Colloid and Surface Chemistry
Keyword(s) biomimetic synthesis
hydrophobic effect
polymers
surface analysis
template synthesis
DOI - identifier 10.1002/asia.201700358
Copyright notice © 2017 Wiley-VCH Verlag GmbH ando. KGaA, Weinheim
ISSN 1861-4728
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