Quinolone based chemosensor for the naked-eye and spectrophotometric detection of Cu2+ in aqueous media

被引:11
|
作者
Patil, Samadhan R. [1 ]
Nandre, Jitendra P. [1 ]
Patil, Prashant A. [1 ,2 ]
Bothra, Shilpa [3 ]
Sahoo, Suban K. [3 ]
Klasek, Antonin [4 ]
Rodriguez-Lopez, Julian [5 ]
Mahulikar, Promod P. [1 ]
Patil, Umesh D. [1 ]
机构
[1] North Maharashtra Univ, Sch Chem Sci, Jalgaon 425001, MS, India
[2] SSVPSs LK Dr PR Ghogrey Sci Coll, Dhule 424001, India
[3] SV Natl Inst Technol, Dept Appl Chem, Surat 395007, Gujarat, India
[4] Tomas Bata Univ, Fac Technol, Dept Chem, CZ-76272 Zlin, Czech Republic
[5] Univ Castilla La Mancha, Fac Ciencias & Tecnol Quim, E-13071 Ciudad Real, Spain
关键词
Chemosensor; Naked-eye detection; Cu2+ ion; Intramolecular charge transfer; INT; COPPER; IONS; RECOGNITION; DISORDERS; EXPOSURE; CELLS;
D O I
10.1016/j.inoche.2014.09.021
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A new 4-hydroxy-2-quinolone based chemosensor (BPHTQ-1) was designed for the spectrophotometric and naked-eye detection of Cu2+. The chemosensor displayed a high selectivity and sensitivity towards Cu2+ in the presence of other competitive metal cations in pure aqueous media. The Cu2+ recognition furnished a distinguishable color change of BPHTQ-1 from colorless to yellow with a significant hyperchromic shift at 300 nm. The S and O atoms of BPHTQ-1 provided a 1:1 binding scaffold for the recognition of Cu2+ ion with a high binding affinity of 19,338 M-1 and a detection limit of 139 mu M, which is quite low compared with World Health Organization (WHO) reports. (C) 2014 Elsevier B.V. All rights reserved.
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页码:59 / 62
页数:4
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