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Issue 86, 2016, Issue in Progress
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Cross-reactive, self-encoded polymer film arrays for sensor applications

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Abstract

The development of chemical sensors continues to be an active area of research, especially for the development of a practical electronic nose. Here, we present a spectroscopic chemical sensor based on an array of 64 self-encoded polymer films deposited on a microfabricated silicon substrate. The polymer arrays were analyzed by FTIR and Raman spectroscopy before and after exposure to a series of organic volatiles to monitor changes in their vibrational fingerprints. We show here that the spectroscopic changes of self-encoded polymer films can be used to distinguish between volatile organic analytes. Changes induced in the sensor arrays by the analyte vapor were denoted by a spectroscopic response of the self-encoded polymer sensors and transformed into a response pattern by multivariate data analysis using partial least squares regression. The results indicated that the polymer sensors provide a unique and reproducible pattern for each analyte vapor and have the potential to be used in the fabrication of a novel electronic nose device.

Graphical abstract: Cross-reactive, self-encoded polymer film arrays for sensor applications

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Supplementary files

Article information


Submitted
28 May 2016
Accepted
24 Aug 2016
First published
25 Aug 2016

RSC Adv., 2016,6, 82616-82624
Article type
Paper

Cross-reactive, self-encoded polymer film arrays for sensor applications

J. E. Fitzgerald, J. Zhu, J. P. Bravo-Vasquez and H. Fenniri, RSC Adv., 2016, 6, 82616
DOI: 10.1039/C6RA13874H

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