Tandem detection of sub-nano molar level CN and Hg2+ in aqueous medium by suitable molecular sensor: a viable solution for detection of CN and development of RGB based sensory device

Mondal, Amita and Hazra, Abhijit and Chakrabarty, Jitamanyu and Bose K, Jagadeesh C. and Banerjee, Priyabrata (2020) Tandem detection of sub-nano molar level CN and Hg2+ in aqueous medium by suitable molecular sensor: a viable solution for detection of CN and development of RGB based sensory device. ACS Omega, 5 (12). pp. 6576-6587.

Full text not available from this repository.

Abstract

An inimitable urea-based multichannel chemosensor, DTPH [1,5-bis-(2,6-dichloro-4-(trifluoromethyl)phenyl)carbonohydrazide], was examined to be highly proficient to recognize CN– based on the H-bonding interaction between sensor −NH moiety and CN– in aqueous medium with explicit selectivity. In the absorption spectral titration of DTPH, a new peak at higher wavelength was emerged in titrimetric analytical studies of CN– with the zero-order reaction kinetics affirming the substantial sensor–analyte interaction. The isothermal titration calorimetry (ITC) experiment further affirmed that the sensing process was highly spontaneous with the Gibbs free energy of −26 × 104 cal/mol. The binding approach between DTPH and CN– was also validated by more than a few experimental studies by means of several spectroscopic tools along with the theoretical calculations. A very low detection limit of the chemosensor toward CN– (0.15 ppm) further instigated to design an RGB-based sensory device based on the colorimetric upshots of the chemosensor in order to develop a distinct perception regarding the presence of innocuous or precarious level of the CN– in a contaminated solution. Moreover, the reversibility of the sensor in the presence of CN– and Hg2+ originated a logic gate mimic ensemble. Additionally, the real-field along with the in vitro CN– detection efficiency of the photostable DTPH was also accomplished by using various biological specimens.

Item Type:	Article
Subjects:	Chemistry
Depositing User:	Dr. Arup Kr. Nandi
Date Deposited:	29 Sep 2021 12:01
Last Modified:	29 Sep 2021 12:01
URI:	http://cmeri.csircentral.net/id/eprint/712

Actions (login required)

View Item