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Sensors 2018, 18(3), 767; https://doi.org/10.3390/s18030767

Conductometric Sensor for PAH Detection with Molecularly Imprinted Polymer as Recognition Layer

1
Department of Analytical Chemistry, University of Vienna, Währinger Strasse 38, Vienna A-1090, Austria
2
Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology (CIIT), Lahore 54000, Pakistan
Dedicated to Prof. Dr. Wolfgang Kautek on the occasion of his 65th birthday.
*
Author to whom correspondence should be addressed.
Received: 27 December 2017 / Revised: 12 February 2018 / Accepted: 28 February 2018 / Published: 3 March 2018
(This article belongs to the Special Issue Polymer-Based Sensors for Bioanalytes)
Full-Text   |   PDF [1977 KB, uploaded 3 March 2018]   |  

Abstract

A conductometric sensor based on screen-printed interdigital gold electrodes on glass substrate coated with molecularly imprinted polyurethane layers was fabricated to detect polycyclic aromatic hydrocarbons (PAHs) in water. The results prove that screen-printed interdigital electrodes are very suitable transducers to fabricate low-cost sensor systems for measuring change in resistance of PAH-imprinted layers while exposing to different PAHs. The sensor showed good selectivity to its templated molecules and high sensitivity with a detection limit of 1.3 nmol/L e.g., for anthracene in water which is lower than WHO’s permissible limit. View Full-Text
Keywords: conductometric sensor; screen-printing; interdigital gold electrodes; molecularly imprinted polymers; polycyclic aromatic hydrocarbons conductometric sensor; screen-printing; interdigital gold electrodes; molecularly imprinted polymers; polycyclic aromatic hydrocarbons
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Latif, U.; Ping, L.; Dickert, F.L. Conductometric Sensor for PAH Detection with Molecularly Imprinted Polymer as Recognition Layer. Sensors 2018, 18, 767.

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