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The Application of Silver Nanoclusters to Sensing, Cell Imaging and Construction of Molecular Logic Gates
Author(s) -
Samai Boby,
Mati Soumya Sundar,
Singharoy Dipti,
Bhattacharya Subhash Chandra
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201804042
Subject(s) - nanoclusters , fluorescence , polyethylenimine , nanotechnology , metal ions in aqueous solution , materials science , cobalt , ion , metal , molecule , chemistry , organic chemistry , physics , optics , transfection , biochemistry , metallurgy , gene
A simple sensitive method to detect both biothiols and cobalt ion among a series of amino acids and metal ions respectively using a single system of fluorescent silver nanoclusters (AgNC) stabilized by hyperbranched polyethylenimine (PEI) has been demonstrated herein. The sensing response of fluorescent AgNC towards both biothiols and cobalt ion has been applied to construct different molecular logic gates. The characterisation of fluorescent AgNC (size ∼ 3 nm) and recognition mechanism towards the biothiols and metal ion have been discussed thoroughly. The sensing property of both biological system and a metal ion with a single system like tiny fluorescent metal nanocluster and their application in the device technology as a logic gate is surely a step to tie the bond between biology and technology through molecular spectroscopy.