Facile synthesis of highly ordered mesoporous Fe3O4 with ultrasensitive detection of dopamine

被引：36

作者：

Huang, Yarong ^{[1
,2
]}

Zhang, Yongzhao ^{[1
,2
]}

Liu, Dandan ^{[3
]}

Li, Menggang ^{[2
]}

Yu, Yongsheng ^{[1
]}

Yang, Weiwei ^{[2
]}

Li, Haibo ^{[1
]}

机构：

[1] Jilin Normal Univ, Minist Educ, Key Lab Funct Mat Phys & Chem, Changchun 130103, Jilin, Peoples R China

[2] Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150001, Heilongjiang, Peoples R China

[3] Sun Yat Sen Univ, Affiliated Hosp 8, Dept Endocrinol, Shenzhen 518033, Peoples R China

来源：

TALANTA | 2019年 / 201卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Dopamine detection; Hard template; Mesoporous Fe3O4; Electrochemical biosensor; ONE-POT SYNTHESIS; ELECTROCHEMICAL DETECTION; SENSITIVE DETECTION; NANOPARTICLES; SENSOR; CELLS; NANOCOMPOSITES; ELECTRODE; CATALYST; COFE2O4;

D O I：

10.1016/j.talanta.2019.01.099

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Dopamine (DA) detection is significant for the prevention of unfavorable neuronal illness. However, the detection of DA with low concentration still face tremendous challenges. In this study, highly ordered mesoporous Fe3O4 materials were synthesized as a biosensor by using mesoporous silica KIT-6 with different aging temperature as hard template. The ordered mesoporous Fe3O4 with high surface area modified glassy carbon electrode shows the high sensitivity for detecting DA. Fe3O4-40 mesoporous material modified electrode has the highest catalytic activity to DA with a sensitivity of 0.053 nA nM(-1) and a detection limit of 0.8 nM (S/N = 3). The results indicating that the mesoporous Fe3O4 material modified electrode exhibits high sensitivity to determine DA at low levels, which can be used for DA real-time monitoring in neutral biological media.

引用

页码：511 / 518

页数：8

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