DNAを用いたフォトニック結晶の階層的結晶成長制御

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2011/08/01

タイトル(英語): Layer-by-Layer Assembly of Photonic Crystal Using DNA

著者名: 木村 良範（キヤノン（株） 総合R&D 本部オプティクス技術開発センター），金田 祥平（東京大学 生産技術研究所），藤井 輝夫（東京大学 生産技術研究所），村田 智（東北大学 大学院工学研究科）

著者名(英語): Yoshinori Kimura (Canon Inc. Research & Development Headquarter Optics Technology Development Center), Shohei Kaneda (Institute of Industrial Science, the University of Tokyo), Teruo Fujii (Institute of Industrial Science, the University of Tokyo), Satoshi Murata (Graduate School of Engineering, Tohoku University)

キーワード: フォトニック結晶，コロイド結晶，DNA ナノテクノロジー，金ナノ粒子，階層的結晶成長　　photonic crystal，colloidal crystal，DNA nanotechnology，gold nanoparticle，layer-by-layer assembly

要約(英語): Photonic crystal is a key component for optical communication and computing in next generation that having a periodic 3D structure in scale with optical wave length. The major difficulty in practical use of photonic crystal exists in its fabrication process. As an optical component, it must be a defect-free large crystal with waveguide patterns affecting propagation of photons. Many attempts have been made to realize such a crystal, however, low-cost and rapid fabrication of a defect-free large crystal is still a difficult problem. Here, we propose a novel fabrication method combining colloidal crystallization and DNA nanotechnology. In this method, the face-centered lattice made of 1µ m polystyrene particle is assembled on a patterned template in a layer-by-layer fashion. In order to control the binding among particles, DNA-gold nanoparticle conjugates (10nm GNP modified with 52-mer DNA) is used. Specific bonding rules between particles and GNPs defined by base sequence of DNA realizes the layer-by-layer growth of the crystal. We have built two-layer crystal by the proposed method and the results show its feasibility. We also found some important factors necessary to improve the quality of the crystal.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.131 No.8 （2011） 特集：先進自動車を支えるセンシング技術

本誌掲載ページ: 286-291 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/ieejsmas/131/8/131_8_286/_article/-char/ja/