Issue 13, 2013
From the journal:

Soft Matter

Bio-inspired three-dimensional self-patterning of functional coatings for PDMS microfluidics†

Tianzhun Wu,*ab   Hiroaki Suzuki,bc   Yuquan Su,a   Zikang Tang,a   Liang Zhangd  and  Tetsuya Yomo*bce  

* Corresponding authors

a School of Physics and Engineering, Sun Yat-sen University, Xingang West 135, Guangzhou 510275, PR China
E-mail: wutzh@mail.sysu.edu.cn

b Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 1-5 Yamadaoka, Suita, Osaka 565-0871, Japan

c Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka 565-0871, Japan

d Key Lab for New Drugs Research of Traditional Chinese Medicines, Key Lab for New Drugs Research of Traditional Chinese Medicines Shenzhen, Research Institute of Tsinghua University in Shenzhen, Shenzhen High-Tech Industrial Estate, Shenzhen 518057, PR China

e Graduate School of Frontier Biosciences, Osaka University, 1-5 Yamadaoka, Suita, Osaka 565-0871, Japan
E-mail: yomo@ist.osaka-u.ac.jp

Abstract

We report a facile, versatile and highly efficient self-patterning method for depositing functional coatings for poly(dimethylsiloxane) (PDMS) microfluidics, inspired by the wetting phenomena of the desert beetle and plant leaves. Driven by the solvent evaporation, fluoropolymer coatings have been demonstrated to deposit only on the roughened PDMS surfaces with exact coverage, conformal thickness, no clogging and good bonding strength, which significantly suppressed the swelling of PDMS by the organic solvent and the nonspecific adsorption of the fluorescent dye.

Graphical abstract: Bio-inspired three-dimensional self-patterning of functional coatings for PDMS microfluidics

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Article information

DOI
https://doi.org/10.1039/C3SM27625B
Article type
Communication
Submitted
14 Nov 2012
Accepted
04 Feb 2013
First published
22 Feb 2013

Soft Matter, 2013,9, 3473-3477

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Bio-inspired three-dimensional self-patterning of functional coatings for PDMS microfluidics

T. Wu, H. Suzuki, Y. Su, Z. Tang, L. Zhang and T. Yomo, Soft Matter, 2013, 9, 3473 DOI: 10.1039/C3SM27625B

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