Abstract
In this study, three main objectives are sought: (a) construction of the biosensor by incorporation of a “capturing element” (consisting of alpha cyclodextrin on a sol-derived substrate) and a “detecting element” (consisting of 2,6-dichloro-quinonechloroimine and sodium hydroxide as buffer and electrolyte), (b) physical characterization of the sensor using spectroscopy and microscopy, and (c) sensor performance through electrochemical facility. Correspondingly, Raman spectroscopy and UV–vis spectroscopy have been applied as diagnostic tool to analyze guest–host interaction of the sol-derived phenol sensor. The goal of this study is the incorporation of both an electrochemical and colorimetric detecting elements. It is anticipated that this study provides a possibility of use of biosensor for “one chemical” dual-functional detection. We use this bi-functional detector in the identification of phenol. The detector is based upon sol-derived colloidal chemistry to produce detecting and sensing elements in which detection is colorimetric and also electrochemical in nature.
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