Surface plasmon resonance based fibre-optic chemical sensor for the detection of cocaine

被引：3
|
作者：
Nguyen, T. Hien [1 ]
Sun, Tong [1 ]
Grattan, Kenneth T. V. [1 ]
机构：
[1] City Univ London, Photon & Instrumentat Res Ctr, London EC1V 0HB, England
来源：
SIXTH EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS | 2016年 / 9916卷
关键词：
Optical fibre sensor; chemical sensor; cocaine sensor; SPR sensor; molecularly imprinted polymer; IMPRINTED POLYMER;
D O I：
10.1117/12.2236938
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A surface plasmon based fibre-optic chemical sensor for the detection of cocaine has been developed using a molecularly imprinted polymer (MIP) film with embedded gold nanoparticles as the recognition element. The MIP was formed on the layer of gold thin film which was deposited on the surface of a fibre core. The sensing was based on swelling of the MIP film induced by analyte binding that shifted the resonance spectrum toward a shorter wavelength. The sensor exhibited a response to cocaine in the concentration range of 0 - 400 mu M in an aqueous acetonitrile mixture. Selectivity for cocaine over other drugs has also been demonstrated.
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页数：4
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