A transparent and photo-patternable superhydrophobic film

Xintong Zhang; Hiroki Kono; Zhaoyue Liu; Shunsuke Nishimoto; Donald A. Tryk; Taketoshi Murakami; Hideki Sakai; Masahiko Abe; Akira Fujishima

doi:10.1039/B713432K

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A transparent and photo-patternable superhydrophobic film†

Xintong Zhang,^a Hiroki Kono,^b Zhaoyue Liu,^a Shunsuke Nishimoto,^a Donald A. Tryk,^a Taketoshi Murakami,^a Hideki Sakai,^b Masahiko Abe^b and Akira Fujishima*^a

Author affiliations

* Corresponding authors

^a Kanagawa Academy of Science and Technology, West 614, KSP Buildings, 3-2-1 Sakado, Takatsu-ku, Kawasaki, Kanagawa, Japan
E-mail: fujishima@newkast.or.jp
Fax: 81 44 819 2038
Tel: 81 44 819 2020

^b Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Japan

Abstract

A transparent superhydrophobic TiO₂ film, prepared by spin-coating a TiO₂ slurry on a glass substrate and modifying the resultant TiO₂ film with fluoroalkylsilane molecules, was patterned by illumination with ultraviolet light through a photomask, producing a superhydrophobic/superhydrophilic surface micropattern with very small superhydrophilic areas, which we were able to selectively fill with alginate hydrogel.

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Supplementary files

Experimental details, a TEM image of TiO ₂ nanoparticles and a plot of size distribution of aggregated TiO ₂ particles analyzed by dynamical light scattering, a cross-sectional SEM image of a TiO ₂ film, a surface topographic image of TiO ₂ film measured by atomic force microscopy, transmission spectra of TiO ₂ films with different thickness, a plot of water contact angle vs. UV illumination time for a superhydrophobic TiO ₂ film, a plot of transmission spectra of a superhydrophobic TiO ₂ film before and after UV irradiation, a micrograph of a surface micropattern that consists of 5 μm-wide superhydrophilic squares, pictures showing the transparency of alginate hydrogel surface pattern, and a plot showing the durability of the superhydrophobic property of the TiO ₂ film under room light PDF (631K)

Article information

DOI: https://doi.org/10.1039/B713432K
Article type: Communication
Submitted: 03 Sep 2007
Accepted: 23 Oct 2007
First published: 30 Oct 2007

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Chem. Commun., 2007, 4949-4951

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A transparent and photo-patternable superhydrophobic film

X. Zhang, H. Kono, Z. Liu, S. Nishimoto, D. A. Tryk, T. Murakami, H. Sakai, M. Abe and A. Fujishima, Chem. Commun., 2007, 4949 DOI: 10.1039/B713432K

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Chemical Communications

A transparent and photo-patternable superhydrophobic film†

Abstract

Supplementary files

Article information

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A transparent and photo-patternable superhydrophobic film

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