Smartphone-based digitized recognition of As3+ along with its effectual mitigation in water using a benzothiazole-functionalized molecular scaffold. Issue 11 (6th May 2022)

• Record Type: Journal Article
• Authors: Nag, Somrita; Mondal, Amita; Hirani, Harish; Banerjee, Priyabrata
• Is Part Of: Materials advances. Volume 3:Issue 11(2022)
• Page Start: 4649
• Page End: 4658
• Publication Date: 2022-05-06
• Subjects: 620.11
• DOI: 10.1039/d2ma00309k
• Languages: English
• ISSNs: 2633-5409

Abstract

Abstract : The chromogenic chemosensor ABH is capable to recognize and mitigate jeopardized As 3+ and sequentially detect toxic F − by mimicking a logic gate ensemble. Arsenic Sensing Kit and RGB enable smartphone-based device have been explored. Abstract : In this work, an innovative azomethine-functionalized chromogenic and electrochemical chemosensor ABH [2-((acridin-9-yl)methylene)-1-(benzo[ d ]thiazol-2-yl)hydrazine] was explored, which was synthesized via a one-pot synthetic route with the aim of prolific and sequential aqueous-phase detection of As 3+ and F − . The chemosensor exhibited distinct colorimetric transformation from yellow to burgundy upon addition of As 3+, which upon subsequent addition of F − rejuvenated, suggesting a strategic application for designing three-input logic gate imitative electronic circuits derived from Boolean algebra. Several sophisticated wet chemical experiments, for instance, UV-Vis spectroscopy, ESI-MS, cyclic voltammetry, 1 H-NMR spectroscopy, and FTIR spectroscopy along with theoretical computations substantiated the sensing phenomena. Furthermore, the development of an inexpensive portable arsenic sensor kit (ASK ) in addition to a RGB-based smartphone-coupled diagnostic sensor station for rapid on-field detection of As 3+ made the chemosensor an exclusive one as a value-added product in our society. Furthermore, the complexation ability of the sensor with toxic As 3+ introduced it as a smart material for the aqueous-phase elimination of As 3+ .