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

T. Hien Nguyen; Tong Sun; Kenneth T. V. Grattan

doi:10.1117/12.2236938

30 May 2016 Surface plasmon resonance based fibre optic chemical sensor for the detection of cocaine

T. Hien Nguyen, Tong Sun, Kenneth T. V. Grattan

Proceedings Volume 9916, Sixth European Workshop on Optical Fibre Sensors; 991612 (2016) https://doi.org/10.1117/12.2236938
Event: Sixth European Workshop on Optical Fibre Sensors (EWOFS'2016), 2016, Limerick, Ireland

Abstract

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 μM in aqueous acetonitrile mixtures. Selectivity for cocaine over other drugs has also been demonstrated.

Citation Download Citation

T. Hien Nguyen, Tong Sun, and Kenneth T. V. Grattan "Surface plasmon resonance based fibre optic chemical sensor for the detection of cocaine", Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 991612 (30 May 2016); https://doi.org/10.1117/12.2236938

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