Volume 30, Issue 3 pp. 300-304
Research Article

Development of a Microreactor for Amino Acid Polymerization

M. Miyazaki

M. Miyazaki

Nanotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tosu, Saga, Japan

Department of Molecular and Material Science, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka, Japan

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T. Honda

T. Honda

Nanotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tosu, Saga, Japan

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H. Nakamura

H. Nakamura

Nanotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tosu, Saga, Japan

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H. Maeda

H. Maeda

Nanotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tosu, Saga, Japan

Department of Molecular and Material Science, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka, Japan

CREST, Japan Science and Technology Agency, Kawaguchi, Saitama, Japan

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First published: 28 February 2007
Citations: 26

Abstract

A microreaction system consisting of a micromixer and a capillary reaction component was developed for the continuous production of amino acid polymers. A silicon glass based chip-type micromixer tethered with a three dimensional microchannel network was fabricated by a combination of maskless technique, dry-etching, and sequential anode bonding. The microreactor was constructed by connecting the micromixer with a microcapillary reaction component and a syringe pump. The resulting microreactor showed excellent controllability of molecular weight distribution of polyamino acid synthesis. The microreactor also produced amino acid copolymers with a more highly controlled molecular weight distribution than that of a batchwise reaction system operating for two months. These features demonstrate that the new microreactor is extremely suitable for the production of polyamino acids.

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