IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
Exploring the bactericidal performance and application of novel mimic enzyme Co4S3
Wang, Jin1,2,3,4; Wang, Yi1,3,4; Zhang, Dun1,3,4
2020-03-01
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
Volume561Pages:327-337
Corresponding AuthorWang, Yi(wangyi@qdio.ac.cn) ; Zhang, Dun(zhangdun@qdio.ac.cn)
AbstractNovel and uniform Co4S3 nanoparticles were synthesized through a two-step hydrothermal process and testified to possess intrinsic peroxidase (POx)-like activity for the first time. As a fresh POx mimic, we studied its catalytic properties, kinetic, and mechanism to catalyze the oxidation of 3, 3', 5, 5'-tetramethylbenzidine in the presence of H2O2. According to the experiments, the bactericidal mechanism is the same as that of simulated enzyme. Based on the ability of Co4S3 inducing H2O2 to express center dot O-2(-), the bactericidal rate can be as high as 100%. Besides, using the POx-like activity of Co4S3, a new off-on sensor for H2O2 and L-cysteine (L-Cys) detection is constructed. The sensor reveals a good wide linear response to H2O2 in the 40-2000 mu M with a detection limit of 18 mu M, while L-Cys in the 20-100 mu M with a detection limit of 10 mM. The proposed method also shows great stability, high selectivity, and excellent practicability. (C) 2019 Elsevier Inc. All rights reserved.
KeywordCo4S3 Enzyme mimic Sterilization Hydrogen peroxide L-cysteine Colorimetric detection
DOI10.1016/j.jcis.2019.10.110
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFC1400605] ; Natured Science Foundation of China[41776090] ; Key Research and Development Program of Shandong Province[2018GHY115038] ; AoShan Talent Program ; Qingdao National Laboratory for Marine Science and Technology
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000508752600031
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/164434
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorWang, Yi; Zhang, Dun
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100039, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Megasci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang, Jin,Wang, Yi,Zhang, Dun. Exploring the bactericidal performance and application of novel mimic enzyme Co4S3[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2020,561:327-337.
APA Wang, Jin,Wang, Yi,&Zhang, Dun.(2020).Exploring the bactericidal performance and application of novel mimic enzyme Co4S3.JOURNAL OF COLLOID AND INTERFACE SCIENCE,561,327-337.
MLA Wang, Jin,et al."Exploring the bactericidal performance and application of novel mimic enzyme Co4S3".JOURNAL OF COLLOID AND INTERFACE SCIENCE 561(2020):327-337.
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