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Broadband enhanced fluorescence using zinc-oxide nanoflower arrays

Wang, Tiesheng and Costan, Jozerd and Centeno, Anthony and Pang, Jing S. and Darvill, Daniel and Ryan, Mary P. and Xie, Fang (2015) Broadband enhanced fluorescence using zinc-oxide nanoflower arrays. Journal of Materials Chemistry C, 3 (11). pp. 2656-2663. ISSN 2048-7177

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Official URL: http://dx.doi.org/10.1039/c4tc02751e

Abstract

ZnO nanostructures were fabricated into flower-like nanoscale arrays by the hydrothermal growth of ZnO nanowires onto a self-assembled monolayer of polystyrene spheres on a glass substrate. Fluorescent molecules conjugated with streptavidin were incubated on glass with 3-(glycidoxypropyl) trimethoxysilane (GPTS) modified and biotinylated bovine serum albumin (bBSA) attached (GPTS–bBSA), aligned ZnO nanorod arrays and ZnO nanoflower arrays, respectively. An enhancement factor of up to 45 was obtained from ZnO nanoflower arrays, compared to less than 10 for the aligned nanorods. More importantly, using the same substrate, we observed a broadband fluorescence enhancement. The level of enhancement obtained from the nanoflower arrays is comparable with that from Metal Enhanced Fluorescence. The broadband nature of this process makes it an attractive alternative for fluorescent based device development.

Item Type:Article
Uncontrolled Keywords:broadband fluorescence, enhanced fluorescence, fluorescent molecules, hydrothermal growth
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Malaysia-Japan International Institute of Technology
ID Code:57984
Deposited By: Haliza Zainal
Deposited On:04 Dec 2016 04:08
Last Modified:09 Dec 2021 06:02

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