Bioassisted selective-capture and release of nanoparticles toward application on microfluidic devices

Y. Shimada, M. Suzuki, M. Sugiyama, I. Kumagai, M. Umetsu

研究成果: Conference contribution

抄録

Peptides with affinity for inorganic materials hold promise for immobilizing functional nanostructures on a solid surface. In this study, a peptide with strict selective affinity for ZnO surfaces was utilized. We functionalized cadmium selenide (CdSe) nanoparticles by conjugating ZnO-binding peptides (ZnOBPs) on the surface of the nanoparticles and performed spontaneous and reversible patterning of ZnOBP-displayed nanoparticles on lithographed ZnO films. Conjugation of ZnOBPs on CdSe nanoparticles caused spontaneous adsorption of the nanoparticles on a ZnO film, and fluorescence and cathodoluminescence images clearly showed specific adsorption of nanoparticles on nano- and micrometer scales. The selectively-bound nanoparticles on ZnO films were completely released by changing the phosphate concentration in solution; such release did not require heat or mechanical applications. Our results show the potential of material-binding peptides for nanopatterning and dynamic microarray applications.

本文言語English
ホスト出版物のタイトル2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
ページ1745-1748
ページ数4
DOI
出版ステータスPublished - 2011
イベント2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11 - Beijing, China
継続期間: 2011 6 52011 6 9

出版物シリーズ

名前2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11

Other

Other2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
国/地域China
CityBeijing
Period11/6/511/6/9

ASJC Scopus subject areas

  • ハードウェアとアーキテクチャ
  • 電子工学および電気工学

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