标题:A highly selective and sensitive fluorescent nanosensor for dopamine based on formate bridged Tb(III) complex and silver nanoparticles
作者:Li, Huihui; Shen, Jin; Cui, Rongwei; Sun, Chongmei; Zhao, Yanyan; Wu, Xia; Li, Na; Tang, Bo
作者机构:[Li, Huihui; Shen, Jin; Cui, Rongwei; Sun, Chongmei; Zhao, Yanyan; Wu, Xia] Shandong Univ, Key Lab Colloid & Interface Chem, Sch Chem & Chem Engn, Min 更多
通讯作者:Wu, X;Tang, B
通讯作者地址:[Wu, X]Shandong Univ, Key Lab Colloid & Interface Chem, Sch Chem & Chem Engn, Minist Educ, Jinan 250100, Shandong, Peoples R China;[Tang, B]Shandong N 更多
来源:ANALYST
出版年:2017
卷:142
期:22
页码:4240-4246
DOI:10.1039/c7an00961e
摘要:Highly selective determination of dopamine (DA) over other catecholamines is an urgent need for the precise diagnosis and therapy of DA related diseases. Herein, a new formate-bridged Tb(III)-complex and silver nanoparticles (AgNPs) enhanced fluorescent nanosensor was constructed. HCOO-acted as a coligand of Tb(III) and also as a linker between the Tb(III) complex and AgNPs and more readily combined with the primary amine of DA than with epinephrine (EP). The formate-bridged action strengthened AgNPs-based surface enhanced fluorescence of the Tb3+-DA complex and improved the selectivity towards DA. Under neutral buffer conditions, the detection limit for the assay of DA was down to 0.15 nM (S/N = 3) with a linear range from 0.5 nM to 100 nM (R-2 = 0.9978). Furthermore, the nanosensor could successfully distinguish DA from EP.
收录类别:SCOPUS;SCIE
WOS核心被引频次:1
Scopus被引频次:1
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85033386226&doi=10.1039%2fc7an00961e&partnerID=40&md5=9cd4a6e979ac5d9703de647ab4a8b3fd
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