3D microfluidics formed with hydrogel sacrificial structures

Kayoko Hirayama, Hiroaki Onoe, Shoji Takeuchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper describes a fast method to fabricate 3D microchannel. We use alginate gel tubes to mold PDMS microchannel. Our method does not need any of those complicated processes such as photolithography or bonding. It consists of three simple steps. (1) Arrangement of the hydrogel tubes according to the objective design, (2) Molding the tubes into PDMS, (3) Dissolution and extrusion of the hydrogel tubes after curing process of the PDMS. The curing process can be performed at normal condition (i.e. 75 degC, 1.5 h). The hollow-centered structure of hydrogel tube reduces fluidic resistance when we dissolved Buried hydrogels in microchannel (Figure 2D). Our method allows us to fabricate complex 3D microfluidics which was difficult to fabricate in the conventional methods using 2D molds fabricated by photolithography.

Original languageEnglish
Title of host publication2012 IEEE 25th International Conference on Micro Electro Mechanical Systems, MEMS 2012
Pages200-203
Number of pages4
DOIs
Publication statusPublished - 2012 May 7
Externally publishedYes
Event2012 IEEE 25th International Conference on Micro Electro Mechanical Systems, MEMS 2012 - Paris, France
Duration: 2012 Jan 292012 Feb 2

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN (Print)1084-6999

Other

Other2012 IEEE 25th International Conference on Micro Electro Mechanical Systems, MEMS 2012
CountryFrance
CityParis
Period12/1/2912/2/2

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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