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Peroxidase-like Activity of Metal-Organic Framework [Cu(PDA)(DMF)] and Its Application for Colorimetric Detection of Dopamine
被引:138
|作者:
Wang, Jun
[1
]
Hu, Yuyan
[1
]
Zhou, Qi
[1
]
Hu, Lianzhe
[1
]
Fu, Wensheng
[1
]
Wang, Yi
[1
]
机构:
[1] Chongqing Normal Univ, Coll Chem, Chongqing Key Lab Green Synth & Applicat, Chongqing 401331, Peoples R China
基金:
中国国家自然科学基金;
关键词:
metal-organic frameworks;
peroxidase;
nanozyme;
copper;
dopamine;
GLUCOSE;
ENZYMES;
NANOPARTICLES;
DNA;
D O I:
10.1021/acsami.9b17488
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
A metal-organic framework (MOF) [Cu(PDA)(DMF)] was synthesized under mild mixed solvothermal conditions. It is constructed by 1,10-phenanthroline-2,9-dicarboxylic acid (H(2)PDA) and Cu2+ ions. The complex exhibits high peroxidase-like activity and can catalytically oxidize the colorless substrate 3,3',5,5'-tetramethylbenzidine to a blue product in the presence of H2O2. However, the peroxidase-like activity of [Cu(PDA)(DMF)] can be potently inhibited in the presence of dopamine. Based on this phenomenon, the colorimetric detection of dopamine was demonstrated with good selectivity and high sensitivity. [Cu(PDA)(DMF)] showed good stability and robust catalytic activity, which has been employed in the detection of dopamine in human urine and pharmaceutical samples.
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页码:44466 / 44473
页数:8
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