DocumentCode
1532525
Title
Intrinsic Fluorescence-Based Optical Fiber Sensor for Cocaine Using a Molecularly Imprinted Polymer as the Recognition Element
Author
Nguyen, T. Hien ; Hardwick, Sheila A. ; Sun, Tong ; Grattan, Kenneth T V
Author_Institution
Sch. of Eng. & Math. Sci., City Univ. London, London, UK
Volume
12
Issue
1
fYear
2012
Firstpage
255
Lastpage
260
Abstract
A fiber-optic chemical sensor for the detection of cocaine has been developed, based on a molecularly imprinted polymer (MIP) containing a fluorescein moiety as the signalling group. The fluorescent MIP was formed and covalently attached to the distal end of an optical fiber. The sensor exhibited an increase in fluorescence intensity in response to cocaine in the concentration range of 0 - 500 μM in aqueous acetonitrile mixtures with good reproducibility over one month. Selectivity for cocaine over others drugs has also been demonstrated.
Keywords
chemical sensors; fibre optic sensors; cocaine; fiber-optic chemical sensor; fluorescein moiety; intrinsic fluorescence-based optical fiber sensor; molecularly imprinted polymer; recognition element; signalling group; Drugs; Fluorescence; Optical fiber sensors; Polymers; Probes; Water; Cocaine sensor; fluorescein; fluorescent sensor; molecular imprinting; optical fiber sensor;
fLanguage
English
Journal_Title
Sensors Journal, IEEE
Publisher
ieee
ISSN
1530-437X
Type
jour
DOI
10.1109/JSEN.2011.2158537
Filename
5783499
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