Highly sensitive fluorescent imidazolium-based sensors for nanomolar detection of explosive picric acid in aqueous medium

被引：83

作者：

Kumari, Santosh ^{[1
]}

Joshi, Sunita ^{[2
]}

Cordova-Sintjago, Tania C. ^{[3
]}

Pant, Debi D. ^{[2
]}

Sakhuja, Rajeev ^{[1
]}

机构：

[1] Birla Inst Technol & Sci, Dept Chem, Pilani 333031, Rajasthan, India

[2] Birla Inst Technol & Sci, Dept Phys, Pilani 333031, Rajasthan, India

[3] HyperCube Inc, 1115 NW 4th St, Gainesville, FL 32601 USA

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2016年 / 229卷

关键词：

Fluorescent; Sensor; Picric acid; Explosive; DFT; METAL-ORGANIC FRAMEWORK; CONJUGATED POLYMER; NITROAROMATIC EXPLOSIVES; IRIDIUM(III) COMPLEX; SELECTIVE DETECTION; CHEMOSENSORS; SUPPORT; SYSTEM; WATER; TNT;

D O I：

10.1016/j.snb.2016.02.019

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Two novel fluorescent coumaryl linked imidazolium salts have been synthesized, characterized and found to be highly selective for nanomolar detection of commonly used explosive picric acid, over other aromatic explosives in aqueous medium. The compounds are highly photostable and are practically applicable for sensing picric acid in real environmental samples, in presence of interfering aromatic/non-aromatic explosives and metal ions. In solution, the high sensitivity of the sensors toward picric acid can be predominantly attributed to the ground-state charge-transfer complex formation based on UV-vis studies, time resolved fluorescence results and DFT calculations. (c) 2016 Elsevier B.V. All rights reserved.

引用

页码：599 / 608

页数：10

共 43 条

[1] Highly cross-linked imidazolium salt entrapped magnetic particles - preparation and applications [J].

Agrigento, Paola ;

Beier, Matthias J. ;

Knijnenburg, Jesper T. N. ;

Baiker, Alfons ;

Gruttadauria, Michelangelo .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (38) :20728-20735

[2]

Akhavan J., 2011, The Chemistry of Explosives, V3rd, P1

[3]

[Anonymous], 2007, CHEM EXPLOSIVES

[4] AIPE-active green phosphorescent iridium(III) complex impregnated test strips for the vapor-phase detection of 2,4,6-trinitrotoluene (TNT) [J].

Bejoymohandas, K. S. ;

George, T. M. ;

Bhattacharya, S. ;

Natarajan, S. ;

Reddy, M. L. P. .

JOURNAL OF MATERIALS CHEMISTRY C, 2014, 2 (03) :515-523

[5] A SPECTROPHOTOMETRIC INVESTIGATION OF THE INTERACTION OF IODINE WITH AROMATIC HYDROCARBONS [J].

BENESI, HA ;

HILDEBRAND, JH .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1949, 71 (08) :2703-2707

[6] Combating terrorism - New efforts to detect explosives require advances on many fronts [J].

Bhattacharjee, Yudhijit .

SCIENCE, 2008, 320 (5882) :1416-1417

[7] Modular fluorescent benzobis(imidazolium) salts: Syntheses, photophysical analyses, and applications [J].

Boydston, Andrew J. ;

Vu, Peter D. ;

Dykhno, Olga L. ;

Chang, Vicki ;

Wyatt, Alvin R., II ;

Stockett, Adam S. ;

Ritschdbrff, Eric T. ;

Shear, Jason B. ;

Bielawski, Christopher W. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (10) :3143-3156

[8]

Cooper P.W., 1996, Explosives Engineering, P33

[9] Micelle-Induced Versatile Sensing Behavior of Bispyrene-Based Fluorescent Molecular Sensor for Picric Acid and PYX Explosives [J].

Ding, Liping ;

Bai, Yumei ;

Cao, Yuan ;

Ren, Guijia ;

Blanchard, Gary J. ;

Fang, Yu .

LANGMUIR, 2014, 30 (26) :7645-7653

[10] Optical explosives detection: from color changes to fluorescence turn-on [J].

Germain, Meaghan E. ;

Knapp, Michael J. .

CHEMICAL SOCIETY REVIEWS, 2009, 38 (09) :2543-2555

← 1 2 3 4 5 →