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

Content Provider	IEEE Xplore Digital Library
Author	Shimada, Y. Suzuki, M. Sugiyama, M. Kumagai, I. Umetsu, M.
Copyright Year	2011
Description	Author affiliation: 3D BEANS center, BEANS project, Tokyo, Japan (Suzuki, M.; Umetsu, M.) \|\| The University of Tokyo, Japan (Shimada, Y.; Sugiyama, M.) \|\| Tohoku University, Sendai, Japan (Kumagai, I.)
Abstract	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.
Starting Page	1745
Ending Page	1748
File Size	1090275
Page Count	4
File Format	PDF
ISBN	9781457701573
e-ISBN	9781457701566
DOI	10.1109/TRANSDUCERS.2011.5969818
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-05
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Nanoparticles Zinc oxide Substrates Peptides Films Luminescence Silicon reversible patterning material-binding peptide nanoparticles
Content Type	Text
Resource Type	Article

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