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Yang D, Chen Z, Gao Z, Tammina SK, Yang Y. Nanozymes used for antimicrobials and their applications. Colloids Surf B Biointerfaces 2020; 195:111252. [PMID: 32679446 DOI: 10.1016/j.colsurfb.2020.111252] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 06/11/2020] [Accepted: 07/08/2020] [Indexed: 12/18/2022]
Abstract
Bacterial infection-related diseases have been growing year-by-year rapidly and raising health problems globally. The exploitation of novel, high efficiency, and bacteria-binding antibacterial agents are extremely need. As far as now, the most extensive treatment is restricted to antibiotics, which may be overused and misused, leading to increased multidrug resistance. Antibiotics abuse, as well as antibiotic-resistance of bacteria, is a global challenge in the current situation. It is highly recommended and necessary to develop novel bactericide to kill the bacteria effectively without causing further resistance development and biosafety issues. Nanozymes, inorganic nanostructures with intrinsic enzymatic activities, have attracted more and more interest from the researchers owing to their exceptional advantages. Compared to natural enzymes, nanozymes can destroy many Gram-positive, Gram-negative bacteria, which builds an important bridge between biology and nanotechnology. As the potent nanoantibiotics, nanozymes have exciting broad-spectrum antimicrobial properties and negligible biotoxicities. And we summarized and highlighted the recent advances on nanozymes including its antibacterial mechanism and applications. Finally, challenges and limitations for the further improvement of the antibacterial activity are covered to provide future directions for the use of engineered nanozymes with enhanced antibacterial function.
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Affiliation(s)
- Dezhi Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Yunnan Province, 650500, China
| | - Zizhao Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Yunnan Province, 650500, China
| | - Zhe Gao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Yunnan Province, 650500, China
| | - Sai Kumar Tammina
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Yunnan Province, 650500, China
| | - Yaling Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Yunnan Province, 650500, China.
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Xi J, Wei G, An L, Xu Z, Xu Z, Fan L, Gao L. Copper/Carbon Hybrid Nanozyme: Tuning Catalytic Activity by the Copper State for Antibacterial Therapy. NANO LETTERS 2019; 19:7645-7654. [PMID: 31580681 DOI: 10.1021/acs.nanolett.9b02242] [Citation(s) in RCA: 183] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Metal-carbon hybrid materials have shown promise as potential enzyme mimetics for antibacterial therapy; however, the effects of metal states and corresponding antibacterial mechanisms are largely unknown. Here, two kinds of copper/carbon nanozymes were designed, with tuned copper states from Cu0 to Cu2+. Results revealed that the copper/carbon nanozymes exhibited copper state-dependent peroxidase-, catalase-, and superoxide dismutase-like activities. Furthermore, the antibacterial activities were also primarily determined by the copper state. The different antibacterial mechanisms of these two copper/carbon nanozymes were also proposed. For the CuO-modified copper/carbon nanozymes, the released Cu2+ caused membrane damage, lipid peroxidation, and DNA degradation of Gram-negative bacteria, whereas, for Cu-modified copper/carbon nanozymes, the generation of reactive oxygen species (ROS) via peroxidase-like catalytic reactions was the determining factor against both Gram-positive and Gram-negative bacteria. Lastly, we established two bacterially infected animal models, i.e., bacteria-infected enteritis and wound healing, to confirm the antibacterial ability of the copper/carbon nanozymes. Our findings provide a deeper understanding of metal state-dependent enzyme-like and antibacterial activities and highlight a new approach for designing novel and selective antibacterial therapies based on metal-carbon nanozymes.
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Affiliation(s)
- Juqun Xi
- Institute of Translational Medicine, Department of Pharmacology, School of Medicine , Yangzhou University , Yangzhou , Jiangsu 225001 , China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases , Yangzhou , Jiangsu 225001 , China
- College of Veterinary Medicine , Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou , Jiangsu 225009 , China
| | - Gen Wei
- Institute of Translational Medicine, Department of Pharmacology, School of Medicine , Yangzhou University , Yangzhou , Jiangsu 225001 , China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases , Yangzhou , Jiangsu 225001 , China
| | - Lanfang An
- Institute of Translational Medicine, Department of Pharmacology, School of Medicine , Yangzhou University , Yangzhou , Jiangsu 225001 , China
| | - Zhuobin Xu
- Institute of Translational Medicine, Department of Pharmacology, School of Medicine , Yangzhou University , Yangzhou , Jiangsu 225001 , China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases , Yangzhou , Jiangsu 225001 , China
| | - Zhilong Xu
- School of Chemistry and Chemical Engineering , Yangzhou University , Yangzhou , Jiangsu 225002 , China
| | - Lei Fan
- School of Chemistry and Chemical Engineering , Yangzhou University , Yangzhou , Jiangsu 225002 , China
| | - Lizeng Gao
- Institute of Translational Medicine, Department of Pharmacology, School of Medicine , Yangzhou University , Yangzhou , Jiangsu 225001 , China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases , Yangzhou , Jiangsu 225001 , China
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Yang G, Chen H, Qin H, Zhang X, Feng Y. Effect of nitrogen doping on the catalytic activity of activated carbon and distribution of oxidation products in catalytic wet oxidation of phenol. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.22791] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guo Yang
- Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041 P. R. China
- School of Chemical Engineering; Sichuan University of Science and Engineering; Zigong 643000 P. R. China
| | - Honglin Chen
- Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041 P. R. China
| | - Hangdao Qin
- Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041 P. R. China
- College of Material and Chemical Engineering; Tongren University; Tongren 554300 P. R. China
| | - Xiaoming Zhang
- Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041 P. R. China
| | - Yujun Feng
- Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041 P. R. China
- Polymer Research Institute, State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu 610065 P. R. China
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Yadav BR, Garg A. Performance assessment of activated carbon supported catalyst during catalytic wet oxidation of simulated pulping effluents generated from wood and bagasse based pulp and paper mills. RSC Adv 2017. [DOI: 10.1039/c6ra25695c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present study reports the performance of catalytic wet oxidation (CWO) for the treatment of simulated pulping effluents (with chemical oxygen demand (COD) = 15 000 and 17 000 mg L−1) from large and small scale pulp and paper mills, respectively.
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Affiliation(s)
- Bholu Ram Yadav
- Centre for Environmental Science and Engineering
- Indian Institute of Technology Bombay
- Mumbai
- India
| | - Anurag Garg
- Centre for Environmental Science and Engineering
- Indian Institute of Technology Bombay
- Mumbai
- India
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