Differentially photo-crosslinked polymers enable self-assembling microfluidics

被引：209

作者：

Jamal, Mustapha ^{[1
]}

Zarafshar, Aasiyeh M. ^{[1
]}

Gracias, David H. ^{[1
,2
]}

机构：

[1] Johns Hopkins Univ, Dept Chem & Biomol Engn, Baltimore, MD 21218 USA

[2] Johns Hopkins Univ, Dept Chem, Baltimore, MD 21218 USA

来源：

NATURE COMMUNICATIONS | 2011年 / 2卷

关键词：

TISSUE; HYDROGELS; MICROFABRICATION; MICROSTRUCTURES; DEVICES; FUTURE; RESIST;

D O I：

10.1038/ncomms1531

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

An important feature of naturally self-assembled systems such as leaves and tissues is that they are curved and have embedded fluidic channels that enable the transport of nutrients to, or removal of waste from, specific three-dimensional regions. Here we report the self-assembly of photopatterned polymers, and consequently microfluidic devices, into curved geometries. We discover that differentially photo-crosslinked SU-8 films spontaneously and reversibly curve on film de-solvation and re-solvation. Photolithographic patterning of the SU-8 films enables the self-assembly of cylinders, cubes and bidirectionally folded sheets. We integrate polydimethylsiloxane microfluidic channels with these SU-8 films to self-assemble curved microfluidic networks.

引用

页数：6

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