Fabrication of amine functionalized CdSe@SiO2 nanoparticles as fluorescence nanosensor for highly selective and sensitive detection of picric acid

被引：14

作者：

Gong, Wen ^{[1
]}

Li, Hang ^{[2
]}

Gong, Xiaoming ^{[2
]}

Zhang, Zaipeng ^{[2
]}

Lu, Zhiyan ^{[2
]}

机构：

[1] Third Peoples Hosp Hubei Prov, Dept Cardiol, Wuhan 430030, Peoples R China

[2] Wuhan Univ, Zhongnan Hosp, Dept Radiol, Wuhan 430071, Hubei, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2020年 / 233卷 / 233期

关键词：

CdSe quantum dots; Nanopartides; PA; Sensors; Core-shell structure; Fluorescence quenching; CDSE QUANTUM DOTS; METAL-ORGANIC FRAMEWORKS; SEMICONDUCTOR NANOCRYSTALS; 2,4,6-TRINITROPHENOL TNP; NITROAROMATIC EXPLOSIVES; AQUEOUS-SOLUTION; SENSORS; PHASE; NANOCLUSTERS; RECOGNITION;

D O I：

10.1016/j.saa.2020.118221

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

In this work, amino functionalized CdSe-silica core-shell nanoparticles (NH2-CdSe@SiO2 NPs) were constructed as probe to detect picric acid (PA). The CdSe QDs were embedded in SiO2 nanopartides and modified with amino groups on the surface. The nitro explosives are electron deficient in nature, which will have stronger affinity for amines and resulted in fluorescence quenching of quantum dots. It was proved that this strategy is selective, easy and sensitive enough for sensing PA with a detection limit of 0.5 x 10(-7) M. (C) 2020 Published by Elsevier B.V.

引用

页数：6

共 50 条

[1] Luminescent metal-organic frameworks as explosive sensors [J].

Banerjee, Debasis ;

Hu, Zhichao ;

Li, Jing .

DALTON TRANSACTIONS, 2014, 43 (28) :10668-10685

[2] Semiconductor nanocrystals as fluorescent biological labels [J].

Bruchez, M ;

Moronne, M ;

Gin, P ;

Weiss, S ;

Alivisatos, AP .

SCIENCE, 1998, 281 (5385) :2013-2016

[3] Potassium ion recognition by 15-crown-5 functionalized CdSe/ZnS quantum dots in H2O [J].

Chen, CY ;

Cheng, CT ;

Lai, CW ;

Wu, PW ;

Wu, KC ;

Chou, PT ;

Chou, YH ;

Chiu, HT .

CHEMICAL COMMUNICATIONS, 2006, (03) :263-265

[4] Detection of Trace Nitroaromatic Isomers Using Indium Tin Oxide Electrodes Modified Using β-Cyclodextrin and Silver Nanoparticles [J].

Chen, Xin ;

Cheng, Xiaoyu ;

Gooding, J. Justin .

ANALYTICAL CHEMISTRY, 2012, 84 (20) :8557-8563

[5] Luminescent CdS quantum dots as selective ion probes [J].

Chen, YF ;

Rosenzweig, Z .

ANALYTICAL CHEMISTRY, 2002, 74 (19) :5132-5138

[6] Gold Nanoparticle Based Label-Free SERS Probe for Ultrasensitive and Selective Detection of Trinitrotoluene [J].

Dasary, Samuel S. R. ;

Singh, Anant Kumar ;

Senapati, Dulal ;

Yu, Hongtao ;

Ray, Paresh Chandra .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (38) :13806-13812

[7] Manganese-doped carbon quantum dots-based fluorescent probe for selective and sensitive sensing of 2,4,6-trinitrophenol via an inner filtering effect [J].

Fan, Huanhuan ;

Xiang, Guo Qiang ;

Wang, Yule ;

Zhang, Heng ;

Ning, Keke ;

Duan, Junyue ;

He, Lijun ;

Jiang, Xiuming ;

Zhao, Wenjie .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2018, 205 :221-226

[8] Functionalized CdSe/ZnS QDs for the Detection of Nitroaromatic or RDX Explosives [J].

Freeman, Ronit ;

Finder, Tali ;

Bahshi, Lily ;

Gill, Ron ;

Willner, Itamar .

ADVANCED MATERIALS, 2012, 24 (48) :6416-6421

[9] An optical sensing platform for the dual channel detection of picric acid: The combination of rhodamine and metal-organic frameworks [J].

Gao Yuqian ;

Qi Yuancheng ;

Zhao Kui ;

Wen Qing ;

Shen Jinwen ;

Qiu Liyou ;

Mou Wanzhi .

SENSORS AND ACTUATORS B-CHEMICAL, 2018, 257 :553-560

[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 →