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An on-demand bench-top fabrication process for fluidic chips based on cross-diffusion through photopolymerization

Authors :
Takumi Kimoto
Takashi Fukuda
Kou Suzuki
Akira Emoto
Source :
Biomicrofluidics
Publication Year :
2020

Abstract

In this paper, we propose a novel approach to fabricate fluidic chips. The method utilizes molecular cross-diffusion, induced by photopolymerization under ultraviolet (UV) irradiation in a channel pattern, to form the channel structures. During channel structure formation, the photopolymer layer still contains many uncured molecules. Subsequently, a top substrate is attached to the channel structure under adequate pressure, and the entire chip is homogenously irradiated by UV light. Immediately thereafter, a sufficiently sealed fluidic chip is formed. Using this fabrication process, the channel pattern of a chip can be designed quickly by a computer as binary images, and practical chips can be produced on demand at a benchtop, instead of awaiting production in specialized factories.

Details

ISSN :
19321058
Volume :
14
Issue :
4
Database :
OpenAIRE
Journal :
Biomicrofluidics
Accession number :
edsair.doi.dedup.....f6647798d3b1045ec82ae4c2627d6871