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Journal of Nanophotonics

Improved surface-enhanced Raman scattering of insulin fibril templated colloidal gold nanoparticles on silicon
Author(s): Chiung-Wen Hsieh; Pei-Ying Lin; Shuchen Hsieh
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Paper Abstract

Insulin fibrils were used as a biotemplate to attach gold nanoparticles to silicon wafer surfaces for application as surface-enhanced Raman scattering (SERS) substrates. Gold nanoparticles (NP) attach to the insulin fibrils through electrostatic interactions forming chains of discreet NPs. A combination of 4-aminothiophenol and 4-Mercaptobenzoic acid were used as probe molecules to evaluate the Raman signal enhancement that was 104 to 106. The SERS signal was strongly enhanced on these surfaces due to the close inter-particle spacing of the patterned gold NPs.

Paper Details

Date Published: 12 March 2012
PDF: 7 pages
J. Nanophoton. 6(1) 063501 doi: 10.1117/1.JNP.6.063501
Published in: Journal of Nanophotonics Volume 6, Issue 1
Show Author Affiliations
Chiung-Wen Hsieh, National Sun Yat-Sen Univ. (Taiwan)
Pei-Ying Lin, National Sun Yat-Sen Univ. (Taiwan)
Shuchen Hsieh, National Sun Yat-Sen Univ. (Taiwan)

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