A "turn-on" fluorescence sensor for Pb2+ detection based on graphene quantum dots and gold nanoparticles

Niu, Xiaofang; Zhong, Yuanbo; Chen, Rui; Wang, Fei; Liu, Yanjun; Luo, Dan

2018-02

10.1016/j.snb.2017.08.167

SENSORS AND ACTUATORS B-CHEMICAL   影响因子和分区

0925-4005

Heavy metal, such as Pb2+, detection technologies are quite important in environment monitoring and human health protection. However, most existing technologies are often time consuming, expensive with sophisticated equipment, and requirement of complicated sample pre-treatment, which limit the useful range of real-time application. Here, we report the development of a "turn-on" fluorescence sensor for Pb2+ detection based on graphene quantum dots and gold nanoparticles. We achieved an extremely broad detection range of Pb2+ from 50 nM to 4 mu M, with a detection limit of 16.7 nM. This sensing system is highly sensitive and selective for determination of Pb2+. The proposed strategy is expected to provide considerable implication for other heavy metal, antigen, or DNAs by modifying sensing molecules, and fast examination in chemical and biological applications. (C) 2017 Elsevier B.V. All rights reserved.

Lead Fluorescence sensor Graphene quantum dots Gold nanoparticles

SCI ; EI

英语

第一 ; 通讯

Shenzhen Science and Technology Innovation Council[JCYJ20150601155130435] ; Shenzhen Science and Technology Innovation Council[JCYJ20160226192528793] ; Shenzhen Science and Technology Innovation Council[JCYJ20150930160634263] ; Shenzhen Science and Technology Innovation Council[KQTD2015071710313656]

Chemistry ; Electrochemistry ; Instruments & Instrumentation

Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation

WOS:000414319900050

ELSEVIER SCIENCE SA

20173604117209

Fiber optic sensors ; Fluorescence ; Gold nanoparticles ; Graphene ; Heavy metals ; Lead ; Metal nanoparticles ; Nanocrystals

Metallurgy and Metallography:531 ; Lead and Alloys:546.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Light/Optics:741.1 ; Fiber Optics:741.1.2 ; Nanotechnology:761

CHEMISTRY

Web of Science

Southern Univ Sci & Technol, Dept Elect & Elect Engn, Xueyuan Rd 1088, Shenzhen 518055, Guangdong, Peoples R China

Niu, Xiaofang,Zhong, Yuanbo,Chen, Rui,et al. A "turn-on" fluorescence sensor for Pb2+ detection based on graphene quantum dots and gold nanoparticles[J]. SENSORS AND ACTUATORS B-CHEMICAL,2018,255:1577-1581.

Niu, Xiaofang,Zhong, Yuanbo,Chen, Rui,Wang, Fei,Liu, Yanjun,&Luo, Dan.(2018).A "turn-on" fluorescence sensor for Pb2+ detection based on graphene quantum dots and gold nanoparticles.SENSORS AND ACTUATORS B-CHEMICAL,255,1577-1581.

Niu, Xiaofang,et al."A "turn-on" fluorescence sensor for Pb2+ detection based on graphene quantum dots and gold nanoparticles".SENSORS AND ACTUATORS B-CHEMICAL 255(2018):1577-1581.