Zr(IV)-based metal-organic framework nanocomposites with enhanced peroxidase-like activity as a colorimetric sensing platform for sensitive detection of hydrogen peroxide and phenol
文献类型： 外文期刊
作者： Wang, Junning 1 ; Zhou, Yujie 2 ; Zeng, Minqian 2 ; Zhao, Yanhong 1 ; Zuo, Xiaoxin 1 ; Meng, Fanrong 2 ; Lv, Fang 1 ; Lu, Yu 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Natl Res Ctr Engn & Technol Vet Biol, Jiangsu Key Lab Food Qual & Safety State Key Lab, Minist Sci & Technol,Inst Vet Immunol & Engn, Nanjing 210014, Peoples R China
2.Nanjing Agr Univ, Coll Vet Med, Nanjing 210095, Peoples R China
3.Jiangsu Coinnovat Ctr Prevent & Control Important, Yangzhou 225009, Jiangsu, Peoples R China
4.Jiangsu Univ, Sch Pharm, Zhenjiang 212013, Jiangsu, Peoples R China
关键词： Metal-organic framework; Nanozymes; Colorimetric detection; H2O2; Phenol
期刊名称：ENVIRONMENTAL RESEARCH （ 影响因子：8.431； 五年影响因子：8.399 ）
ISSN： 0013-9351
年卷期： 2022 年 203 卷
页码：
收录情况： SCI
摘要： Recently, metal-organic frameworks (MOFs) have great potential as an emerging peroxide-mimicking enzyme, and the improvement of its enzyme-like activity is desired. There are few studies on improving the peroxidase-like activity of MOFs by using the strategy of size reduction. Moreover, it is challenging to enhance the activity of Zr-based MOFs with peroxidase-mimicking activity by size reduction strategy. In this work, the synthesis of Zr-based MOFs capped with polyvinylpyrrolidone (Zr-MOF-PVP) was firstly reported to reduce crystal size of peroxidase-mimicking enzyme for enhanced catalytic activity. Using the 3,3',5,5'-Tetramethylbenzidine (TMB) as substrate, the synthesized Zr-MOF-PVP nanocomposites with nanosize (about 45 nm) possessed obviously enhanced peroxidase-like activity compared with the pristine Zr-MOF. Based on the above, the Zr-MOF-PVP was also successfully applied in constructing colorimetric detection. By using hydrogen peroxide (H2O2) and phenol as the model analytes, the satisfactory detection performance was obtained, indicating that the proposed method had an attractive application prospect in the field of peroxidase-related detection. Besides, this work also pro-vided a new perspective for improving the catalytic activity of nanozymes.
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