Preparation of near-infrared Ag2S quantum dots for detection of bisphenol A in water

被引：3
作者：
Hu, Yanling [1 ]
Deng, Chun [1 ]
He, Yu [1 ,2 ,3 ]
Ge, Yili [1 ,2 ]
Song, Gongwu [1 ,2 ]
机构：
[1] Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei, Peoples R China
[2] Hubei Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Synth & Applicat Organ Funct Mol, Wuhan 430062, Hubei, Peoples R China
[3] Hubei Key Lab Reg Dev & Environm Response, Wuhan 430062, Hubei, Peoples R China
来源：
MICRO & NANO LETTERS | 2018年 / 13卷 / 01期
关键词：
silver compounds; organic compounds; chemical sensors; quantum dots; fluorescence; radiation quenching; Ag2S; near-infrared quantum dots; bisphenol A detection; water; environmental samples; quenching; fluorescence peak; sulphur-hydrazine hydrate complex; glutathione-protected silver sulphide quantum dots; HUMAN URINE; FLUORESCENCE; LUMINESCENT; BIOSENSOR; PROTEIN; SAMPLES; BPA;
D O I：
10.1049/mnl.2017.0199
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The work develops a novel method for the detection of bisphenol A (BPA) based on glutathione (GSH)-protected silver sulphide quantum dots (Ag2S QDs), which was simple, fast, non-toxic, sensitive and selective. Ag2S QDs were synthesised with a sulphur-hydrazine hydrate complex as the S2- source and GSH as the stabiliser. Ag2S QDs, near-infrared QDs, offered the advantages over lower background fluorescence and lower signal loss. The fluorescence peak of Ag2S QDs at 650 nm was quenched significantly in the presence of BPA. Good linear correlations were obtained over the concentration range from 0 to 60 M of BPA under optimised conditions. The developed selective and sensitive method presaged more opportunities for the application in environmental samples.
引用
收藏
页码：112 / 116
页数：5
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