Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 410, Issue 27, Pages 7145-7152Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-018-1317-y
Keywords
Chromogenic reaction, in the absence of H2O2; Peroxidase-like activity; Zeolitic imidazolate framework
Funding
- Agricultural Science Promotion Plan of Shanghai 273 (2017) [4-4]
- Science and technology innovation plan of Shanghai [18495800400]
- Natural Science Foundation of China [81572809]
- Natural Science Foundation for 275 Young Scientists of China [81502504]
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In this work, we report a zeolitic imidazolate framework (ZIF-67) which could catalyze 3,3', 5,5'-tetramethylbenzidine (TMB) to produce a yellow chromogenic reaction. ZIF-67 showed high peroxidase-like activity compared with copper-based metal-organic framework nanoparticles (Cu-MOF), zinc-based metal-organic framework nanoparticles (ZIF-8), and horseradish peroxidase (HPR). We discovered for the first time that the cobalt-based metal-organic framework nanoparticles possess intrinsic peroxidase-like activity without H2O2, which can be employed to quantitatively monitor the H2O2.
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