Fluorometric determination of dopamine by using molybdenum disulfide quantum dots

doi:10.1007/s00604-018-2771-0

NWIPB OpenIR

	Fluorometric determination of dopamine by using molybdenum disulfide quantum dots
	Liu, Xinnan 1; Zhang, Wentao 1; Huang, Lunjie 1; Hu, Na 2; Liu, Wei 3; Liu, Yingnan 1; Li, Sihang 1; Yang, Chengyuan 1; Suo, Yourui 2; Wang, Jianlong 1
	2018-04-01
发表期刊	MICROCHIMICA ACTA
卷号	185 期号:4
文章类型	Article
摘要	A method is described for the rapid fluorometric determination of dopamine (DA) by using molybdenum disulfide quantum dots (MoS2 QDs) that were fabricated via an ammonium hydroxide etching method. The probe has a fluorescence (with excitation/ emission peaks at 267/380 nm) that is quenched by DA with high selectivity over various interferences. This is attributed to a reaction that occurs between DA and the molybdate ions in pH 9 solutions of MoS2 QDs. The formation of organic molybdate complexes and of dopamine-quinone results in strong quenching of the fluorescence of the QDs which is due to both electron transfer and an inner filter effect. Under the optimum conditions, the assay works in the 0.1-100 mu M DA concentration range, with two linear ranges and a 10 nM detection limit. The method was applied to the determination of DA in spiked artificial urine samples, where it gave recoveries ranging from 97.6 to 102.2%, demonstrating that the method a promising tool for rapid and selective detection of DA.
关键词	Dopamine Dynamic Quenching Etching Synthesis Fluorescent Probe Transition Metal Dichalcogenides
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1007/s00604-018-2771-0
关键词[WOS]	FLUORESCENCE DETECTION ; CARBON DOTS ; MOS2 ; FOOD ; NANOPARTICLES ; SAMPLES ; ACID ; PHOTOLUMINESCENCE ; NANOMATERIALS ; CYSTEINE
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(21675127) ; Fundamental Research Funds for the Northwest A&F University of China(2014YB093 ; Development Project of Qinghai Key Laboratory(2017-ZJ-Y10) ; 2452015257)
WOS研究方向	Chemistry
WOS类目	Chemistry, Analytical
WOS记录号	WOS:000429381600031
引用统计	被引频次：50[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/13349
专题	中国科学院西北高原生物研究所
作者单位	1.Northwest A&F Univ, Coll Food Sci & Engn, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci, Northwest Inst Plateau Biol, Qinghai Key Lab Qinghai Tibet Plateau Biol Resour, Xining 810008, Qinghai, Peoples R China 3.Yangling Vocat & Tech Coll, Biol Engn Dept, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xinnan,Zhang, Wentao,Huang, Lunjie,et al. Fluorometric determination of dopamine by using molybdenum disulfide quantum dots[J]. MICROCHIMICA ACTA,2018,185(4).
APA	Liu, Xinnan.,Zhang, Wentao.,Huang, Lunjie.,Hu, Na.,Liu, Wei.,...&Wang, Jianlong.(2018).Fluorometric determination of dopamine by using molybdenum disulfide quantum dots.MICROCHIMICA ACTA,185(4).
MLA	Liu, Xinnan,et al."Fluorometric determination of dopamine by using molybdenum disulfide quantum dots".MICROCHIMICA ACTA 185.4(2018).