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Investigating the properties of nano core-shell CeO2@C as haloperoxidase mimicry catalyst for antifouling applications

文献类型：期刊论文

作者Wang, Nan1,2,3,4; Li, Wangqiang4; Ren, Yadong4; Duan, Jizhou1,2,4; Zhai, Xiaofan1,2,4; Guan, Fang1,2,4; Wang, Lifei1,4; Hou, Baorong1,2,4
刊名COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
出版日期2021-01-05
卷号608页码:9
关键词CeO2@C Haloperoxidase mimicry catalyst Haloperoxidase-like activity Hypobromous acid Antibacterial activity Antifouling
ISSN号0927-7757
DOI10.1016/j.colsurfa.2020.125592
通讯作者Duan, Jizhou(duanjz@qdio.ac.cn) ; Zhai, Xiaofan()
英文摘要Developing environmental and cost-effective antifouling technologies is essential to solve serious biofouling problems. Recently, enzyme mimics and halogenating enzymes have caught progressively attention as valuable tools to combat biofilm formation. In this work, the core-shell structure of CeO2@C, as one effective haloperoxidase-like enzyme mimics, was successfully synthesized using the carbon sphere as template through a simple coprecipitation method. Through the UV-vis absorption spectra and kinetic measurements, the CeO2@C displays intrinsic haloperoxidase-like activity via catalyzing the bromination of organic signaling compounds. Meanwhile, the prepared CeO2@C catalyst process high catalytic stability and recyclability, corresponding to a well catalytic performance repeatability after refresh of raw substrates (at least 10 times). The antibactrial property of CeO2@C as haloperoxidase mimicry is evaluated by immersing titanium plate/CeO2@C modified titanium plates into bacterial suspensions with different conditions for 4 h at 37 degrees C. It can catalyze the oxidation of Br- with H2O2 to the corresponding hypobromous acid (HBrO), which exhibits strong antibacterial activity against Gram-negative (Escherichia coli), Gram-positive (Staphylococcus aureus) bacteria and typical marine (Pseudomonas aeruginosa) bacteria. This study introduces a stable, non-poisonous and inexpensive biomimetic material for antibacterial, antifouling and disinfection applications based on novel sustainable and conservation methods.
资助项目Key Research Program of Frontier Sciences, Chinese Academy of Sciences[ZDBS-LY-DQC025] ; National Natural Science Foundation of China[41706080] ; National Natural Science Foundation of China[41806090] ; Chinese Academy of Sciences[XDA13040403] ; National Natural Science Foundation of China for Exploring Key Scientific Instrument[41827805]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000596332000003
出版者ELSEVIER
源URL[http://ir.qdio.ac.cn/handle/337002/169498]  
专题海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者Duan, Jizhou; Zhai, Xiaofan
作者单位1.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China
2.Chinese Acad Sci, Ctr Ocean Megasci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
3.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100039, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Nan,Li, Wangqiang,Ren, Yadong,et al. Investigating the properties of nano core-shell CeO2@C as haloperoxidase mimicry catalyst for antifouling applications[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2021,608:9.
APA Wang, Nan.,Li, Wangqiang.,Ren, Yadong.,Duan, Jizhou.,Zhai, Xiaofan.,...&Hou, Baorong.(2021).Investigating the properties of nano core-shell CeO2@C as haloperoxidase mimicry catalyst for antifouling applications.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,608,9.
MLA Wang, Nan,et al."Investigating the properties of nano core-shell CeO2@C as haloperoxidase mimicry catalyst for antifouling applications".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 608(2021):9.

入库方式： OAI收割

来源：海洋研究所

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