Preparation of novel optical fibre-based Cocaine sensors using a molecular imprinted polymer approach

Wren, S., Nguyen, T.H., Gascoine, P., Lacey, R., Sun, T. & Grattan, K. T. V. (2014). Preparation of novel optical fibre-based Cocaine sensors using a molecular imprinted polymer approach. Sensors and Actuators, B: Chemical, 193, pp. 35-41. doi: 10.1016/j.snb.2013.11.071

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Abstract

Novel chemical sensors using fibre optic-based techniques for the detection of Cocaine have been developed, utilising molecularly imprinted polymers (MIPs) containing fluorescein moieties as the signalling groups. The fluorescent MIPs were formed and covalently attached to the distal end of specially chosen optical fibres to create fibre optic probe-based sensors. These sensors exhibited are producible and quantifiable change in the intensity of the fluorescence signal received from the sensor in response to Cocaine in aqueous acetonitrile mixtures. High selectivity for Cocaine over Codeine and a range of known Cocaine interferants has been demonstrated for one of the sensors developed in this work.

Item Type: Article
Uncontrolled Keywords: Optical fibre sensor; Chemical sensor; Cocaine sensor; Fluorescence; Molecular imprinted polymer; Interferants
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/4575

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