Ultrathin ZIF-67 nanosheets as a colorimetric biosensing platform for peroxidase-like catalysis
Ultrathin ZIF-67 nanosheets as a colorimetric biosensing platform for peroxidase-like catalysis
复制标题
超薄 ZIF-67 纳米片作为类过氧化物酶催化的比色生物传感平台
DOI：
10.1007/s00216-018-1317-y
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发表时间：
2018-11-01
影响因子：
4.3
通讯作者：
Liu, Qing
中科院分区：
文献类型：
--
作者：
Wang, Shujuan;Xu, Dongpo;Liu, Qing
本文报道了一种咪唑骨架分子筛（ZIF-67）催化3，3 '，5，5'-四甲基联苯胺（TMB）的显色反应。ZIF-67与铜基金属有机骨架纳米颗粒（Cu-MOF）、锌基金属有机骨架纳米颗粒（ZIF-8）和辣根过氧化物酶（HPR）相比显示出高的过氧化物酶样活性。我们首次发现钴基金属有机骨架纳米粒子在没有H2 O2的情况下具有固有的过氧化物酶样活性，这可以用来定量监测H2 O2。
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.