3-Aminophenylboronic acid-functionalized molybdenum disulfide quantum dots for fluorescent determination of hypochlorite

被引：13

作者：

Zhong, Yaping ^{[1
]}

Guo, Lijuan ^{[1
]}

Lu, Zhentan ^{[1
]}

Wang, Dong ^{[1
]}

机构：

[1] Wuhan Text Univ, Minist Educ, Key Lab Text Fiber & Prod, Hubei Int Sci & Technol Cooperat Base Intelligent, Wuhan 430200, Peoples R China

来源：

MICROCHIMICA ACTA | 2023年 / 190卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Molybdenum disulfide quantum dots; 3-Aminophenylboronic acid; Redox reaction; Hypochlorite detection; Fluorescence; METAL-ORGANIC FRAMEWORK; CARBON DOTS; RAW-MILK; NANOPROBE; CHLORINE; PROBE; FABRICATION; FE3+;

D O I：

10.1007/s00604-022-05598-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple method is reported for hypochlorite determination based on fluorescence 3-aminophenylboronic acid-functionalized molybdenum disulfide quantum dots (B-MoS2 QDs). B-MoS2 QDs with strong fluorescence at 380 nm have been successfully synthesized by the amidation reaction between APBA and hydrothermal MoS2 QDs. Hypochlorite sensing was proposed utilizing the fluorescent quenching effect of 3,3MODIFIER LETTER PRIME,5,5MODIFIER LETTER PRIME-tetramethylbenzidine dihydrochloride (TMB) on B-MoS2 QDs and the fast redox reaction between hypochlorite and TMB. The fluorescent quenching effect of TMB to B-MoS2 QDs was proved to be caused by static dynamic quenching and inner filter effect. A good linear relationship was obtained in the hypochlorite concentration range from 1 to 20 mu M, and the limit of detection (LOD) was 36.8 nM. The proposed fluorescent detection assay was simple and fast, taking only 5 min at room temperature. Satisfactory results were obtained in the standard spike recovery tests on tap water and milk samples, which indicate high potential in constructing fluorescent bio-detection assays.

引用

页数：12

共 56 条

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