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Cd2+ Complex of a Triazole-Based Calix[4]arene Conjugate as a Selective Fluorescent Chemosensor for Cys

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Title Cd2+ Complex of a Triazole-Based Calix[4]arene Conjugate as a Selective Fluorescent Chemosensor for Cys
 
Creator PATHAK, RK
HINGE, VK
MAHESH, K
RAI, A
PANDA, D
RAO, CP
 
Subject ALPHA-AMINO-ACIDS
CD-113 NMR
SERUM-ALBUMIN
SOLID-STATE
SENSOR
ZINC
RECOGNITION
CYSTEINE
IONS
ZN2+
 
Description An N,N-Dimethylamine ethylimino-appended triazole-linked calix[4]arene conjugate, L, has been synthesized and characterized, and its Cd2+ complex has been isolated and characterized. The structure of [CdL] was established by computational calculation using B3LYP/LANL2DZ. Time-dependent density functional theory calculations were performed to demonstrate the electronic properties of [CdL]. This highly fluorescing [CdL] has been used to recognize Cys selectively among the 20 naturally occurring amino acids. [CdL] exhibits a minimum detection limit of 58 ppb for Cys, with reusability and reversibility being imparted to the system during sensing. Thus, the sensing of Cys was well demonstrated using various techniques, viz., fluorescence, absorption, visual color change, electrospray ionization MS, H-1 NMR, and live cell imaging experiments.
 
Publisher AMER CHEMICAL SOC
 
Date 2014-10-15T13:22:03Z
2014-10-15T13:22:03Z
2012
 
Type Article
 
Identifier ANALYTICAL CHEMISTRY, 84(15)6907-6913
http://dx.doi.org/10.1021/ac301492h
http://dspace.library.iitb.ac.in/jspui/handle/100/14992
 
Language en