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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41182

Title: SERS Study of Histamine by using Silver Film over Nanosphere Structure
Authors: Wen-Chi Lin
Tsong-Ru Tsai
Hsiang-Lin Huang
Chyuan Yuan Shiau
Hai-Pang Chiang
Contributors: 國立臺灣海洋大學:光電科學研究所
Keywords: Silver film over nanosphere (AgFON)
Surface-enhanced Raman scattering (SERS)
Nanosphere lithography (NSL)
Histamine
Date: 2012
Issue Date: 2017-02-10
Publisher: Plasmonics
Abstract: Abstract: Optical properties of histamine and l-histidine have been analyzed by using surface-enhanced Raman scattering (SERS). A silver film over nanosphere (AgFON) structure with 120-nm-thick silver film on polystyrene nanospheres 1,000 nm in diameter is fabricated by nanosphere lithography to enhance the Raman signal excited at the laser wavelength of 532 nm. Normal Raman spectrum and the SERS spectrum of histamine and l-histidine were compared. Further, vibration modes of these molecules were calculated by using density functional method. In the SERS experiment, we were able to measure the Raman spectrum with a histamine concentration as less as 100 pM. This sensitivity is higher than that from high-performance liquid chromatography.
Relation: 7(4)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41182
Appears in Collections:[光電科學研究所] 期刊論文

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