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Mini-Reviews in Organic Chemistry

Author(s): Pawanpreet Kaur, Anupama Parmar and Harish Kumar Chopra*

DOI: 10.2174/1570193X20666230614141728

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Recent Advances in Synthesis and Applications of Organic Ionic Saltsbased Sensor Arrays

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Abstract

Sensor arrays contain a group of sensors, improve observations with new dimensions, provide better estimations, and additional parameters in comparison to the individual selective sensor. The array-based sensing technique provides good performance to respond to various gaseous or liquid analytes. Room temperature ionic liquids (RTILs) (melting point <25°C) and Group of uniform materials based on organic salts (GUMBOS) (melting point =25-250°C) are organic ionic salts, composed of an oppositely charged pair of bulky organic cations and bulky organic/inorganic anion and shows interesting tunable physicochemical properties. In this review article, we will discuss the sensing performance of ILs- and GUMBOS-based sensor arrays. ILs-based sensor arrays have been used in electrochemical gas sensing, solvent discrimination, colorimetric gas sensing, sensing of organic compounds, optoelectronic sensing of vapors and solutions, and vapour sensing through IL/QCM systems. GUMBOS-based sensor arrays have been employed in vapour sensing through the GUMBOS/QCM method, detection, and discrimination of proteins.

Keywords: Sensor array, ionic liquids, GUMBOS, organic vapors, discrimination, additional parameters.

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