R. Mondal, J. Kumar, K. A. Dubey
Jul 1, 2018
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Influential Citations
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Journal
Sensors and Actuators B: Chemical
Abstract
Abstract 2-propanone is a commonly-used chemical and is a biomarker of diabetic ketoacidosis. Herein, the development of a novel stand-alone chemiresistive sensor with high sensitivity and selectivity for 2-propanone is reported. Fluorocarbon elastomer (FCE)/nanocarbon black (NCB) conducting composites based chemiresistors with different crosslinking densities were synthesized via melt compounding followed by radiation crosslinking. Conducting composites in different parts of the percolation profile were chosen to establish the dependence of 2-propanone sensing response on the conducting network and the radiation cross-linked network. The chemiresistor showed a highly selective response for 2-propanone whereas a considerably lower response was noted for benzene, toluene, xylene, ethanol, methanol and water. The sensing response had a strong correlation with the FCE-analyte interaction parameter (χ12).