Two-Dimensional-Plasmon-Boosted Iron Single-Atom Electrochemiluminescence for the Ultrasensitive Detection of Dopamine, Hemin, and Mercury

被引：59

作者：

Bushira, Fuad Abduro ^{[1
,2
,3
]}

Kitte, Shimeles Addisu ^{[1
,3
]}

Xu, Chen ^{[1
,2
]}

Li, Haijuan ^{[1
]}

Zheng, Lirong ^{[4
]}

Wang, Ping ^{[1
]}

Jin, Yongdong ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China

[2] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China

[3] Jimma Univ, Coll Nat Sci, Dept Chem, POB 378, Jimma, Ethiopia

[4] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China

来源：

ANALYTICAL CHEMISTRY | 2021年 / 93卷 / 28期

基金：

中国国家自然科学基金;

关键词：

SURFACE-ENHANCED ELECTROCHEMILUMINESCENCE; METAL-ORGANIC FRAMEWORK; ELECTROGENERATED CHEMILUMINESCENCE; OXYGEN REDUCTION; SENSITIVE DETECTION; PERFECT ABSORBER; LUMINOL; NITROGEN; LUMINESCENCE; ABSORPTION;

D O I：

10.1021/acs.analchem.1c02232

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Single-atom catalysts (SACS) have recently been exploited for luminol-dissolved oxygen electrochemiluminescence (ECL); however, they still suffer from low sensitivity and narrow detection range for a real sample assay. In this work, we boost markedly the ECL response of the iron SAC (Fe-SAC)-based system, for the first time, by the excitation of two-dimensional plasmons derived from the AugSiO(2) nanomembrane. The plausible mechanism of plasmon enhancement in the Fe-SAC ECL system has been discussed. The constructed Fe-SAC ECL system has been applied for the ECL detection of dopamine, hemin, and mercury (Hg2+), with pretty low limits of detection of 0.1, 0.7, and 0.13 nM and wider linear ranges of 0.001-1.0, 0.001-10, and 0.01-0.5 nM, respectively, under optimal conditions.

引用

页码：9949 / 9957

页数：9

共 60 条

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