Issue 17, 2012

Direct-writing colloidal photonic crystal microfluidic chips by inkjet printing for label-free protein detection

Abstract

Integrating photonic crystals (PC) into microfluidic systems has attracted immense interest for its novel functions. However, it is still a great challenge to fabricate PC microfluidic chips rapidly with complex functions. In this work, a direct-writing colloidal PC microchannel was firstly achieved by inkjet printing and was used for the surface-tension-confined microfluidic immune assay. PC channels with different structure colors have been successfully integrated on one chip. The fabricated chip has the advantages of rapid fabrication, quick fluidic transport and can monitor the fluidic fluxion using the naked eye. Utilizing this PC microfluidic chip, a colorimetric label-free immune assay was realized without nonspecific adsorption interference of the target.

Graphical abstract: Direct-writing colloidal photonic crystal microfluidic chips by inkjet printing for label-free protein detection

Supplementary files

Article information

Article type
Paper
Submitted
05 Dec 2011
Accepted
24 May 2012
First published
25 May 2012

Lab Chip, 2012,12, 3089-3095

Direct-writing colloidal photonic crystal microfluidic chips by inkjet printing for label-free protein detection

W. Shen, M. Li, C. Ye, L. Jiang and Y. Song, Lab Chip, 2012, 12, 3089 DOI: 10.1039/C2LC40311K

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