Inkjet Print Microchannels Based On A Liquid Template - RSC Publishing

Inkjet print microchannels based on a liquid template†

Yuzhen Guo,ab Lihong Li,a Fengyu Li,*a Haihua Zhoua and Yanlin Song*a Author affiliations

* Corresponding authors

a Beijing National Laboratory for Molecular Sciences (BNLMS), Key Lab of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China E-mail: ylsong@iccas.ac.cn, forrest@iccas.ac.cn

b Graduate University of the Chinese Academy of Sciences, Beijing 100049, PR China

Abstract

A simple method to fabricate microchannels is demonstrated based on an inkjet printing liquid template. The morphology of the liquid template can be well controlled by using ink with viscosity sensitive to temperature. The as-prepared Y-shape microchannel is used as a microfluidic reactor for an acylation fluorigenic reaction in a matrix of polydimethylsiloxane (PDMS). Arbitrary modification of the microchannels could be easily realized synchronously with the formation of the microchannels. By grafting polyethylene glycol (PEG) onto the internal surface, an anti-biosorption microchannel is obtained. The facile method will be significant for the fabrication of a microfluidic chip with functional modifications.

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