マイクロ波加熱によるオンチップ金ナノ粒子合成

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2020/04/01

タイトル(英語): On Chip Synthesis of Au Nanoparticles by Microwave Heating

著者名: 竹内　雅耶（兵庫県立大学 高度産業科学技術研究所），岸原　充佳（岡山県立大学 情報工学部），福岡　隆夫（兵庫県立大学 高度産業科学技術研究所／京都大学大学院工学研究科マイクロエンジニアリング専攻），山口　明啓（兵庫県立大学 高度産業科学技術研究所），内海　裕一（兵庫県立大学 高度産業科学技術研究所）

著者名(英語): Masaya Takeuchi (Laboratory of Advanced Science and Technology for Industry, University of Hyogo), Mitsuyoshi Kishihara (Faculty of Computer Science and System Engineering, Okayama Prefectural University), Takao Fukuoka (Laboratory of Advanced Science and Technology for Industry, University of Hyogo/Graduate School of Engineering, Kyoto University), Akinobu Yamaguchi (Laboratory of Advanced Science and Technology for Industry, University of Hyogo), Yuichi Utsumi (Laboratory of Advanced Science and Technology for Industry, University of Hyogo)

キーワード: ポスト壁導波路，マイクロ波加熱，マイクロリアクタ，マイクロ流体デバイス　　post-wall waveguide，microwave heating，micro reactor，micro fluidic device

要約(英語): We demonstrate the on-chip synthesis of Au nanoparticles achieved by a microwave-induced reaction in a microfluidic channel. The chip structure consists of a waveguide and a microchannel through the inside of the waveguide. A post-wall waveguide, which configures the metallic post on the side wall continuously, is utilized to confine microwave fields. It allows to insert a solution inside the waveguide by microchannel passing between the metallic posts. In order to realize a miniaturization of the chip, the 24.125 GHz industrial, scientific, and medical (ISM) band is utilized instead of the commonly used 2.45 GHz ISM band. When pure water is heated in the microchannel under the microwave input power of 3.0 W, it has been confirmed that the temperature increases to 70℃. In this paper, this chip is adopted to synthesis Au nanoparticles via microwave-induced reaction. After the irradiation of the microwave power 3.0 W and the irradiation time 5 min, we have observed absorbance and dynamic light scattering of the reactant, and the results indicated generation of Au nanoparticles. This microwave synthesis system allows us to achieve automatic and fast selective synthesis of nanoparticles in the solution.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.140 No.4 （2020） 特集：ナノ構造の医療・バイオ応用技術

本誌掲載ページ: 471-475 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/140/4/140_471/_article/-char/ja/