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Antibacterial mechanism and activity of cerium oxide nanoparticles

  • Mengzhen Zhang (张 萌 真)
  • Chao Zhang (张 超)
  • Xinyun Zhai (翟 欣 昀)Email author
  • Feng Luo (罗 锋)
  • Yaping Du (杜 亚 平)
  • Chunhua Yan (严 纯 华)
Reviews SPECIAL ISSUE: Celebrating the 100th Anniversary of Nankai University
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Abstract

Nanomaterials have been applied as antibacterial agents by virtue of their unique functioning mechanism different from that of conventional antibiotics. Cerium oxide nanoparticles (CeO2 NPs) are important antibacterial agents due to their relatively low toxicity to normal cells and their distinct antibacterial mechanism based on the reversible conversion between two valence states of Ce(III)/Ce (IV). Some studies have been conducted to explore their antibacterial activities; however, systematic research reviews on the related mechanisms and influencing factors are still quite rare. In this review, we discuss the plausible mechanisms of the antibacterial activity of CeO2 NPs, analyze different influencing factors, and summarize various research reports on antibacterial effects on E. coli and S. aureus. We also propose the potential applications and prospects, and hope to provide an in-depth understanding on the antibacterial mechanism and a better guidance to the design and applications of this promising antibacterial material in the future.

Keywords

cerium oxide nanoparticles antibacterial mechanism electrostatic interaction 

氧化铈纳米粒子的抗菌机理及应用

摘要

纳米材料因其特殊的抗菌机理, 在抗菌领域得到了广泛应 用. 氧化铈纳米粒子是重要的抗菌材料之一, 具有对正常细胞毒性 低, 且抗菌机理基于可逆价态转化的优势. 目前已有许多关于氧化 铈纳米粒子抗菌活性的研究报道, 但系统性探究其抗菌机理的文 章则极为少见. 本文首先系统性地探究了氧化铈纳米粒子可能的 抗菌机理, 即静电相互作用在抗菌过程中发挥重要作用, 此外抗菌 过程还伴随活性氧物种的产生和纳米粒子对细菌的机械损伤. 其 次, 本文分析了氧化铈纳米粒子抗菌效果的影响因素, 并总结了不 同研究中氧化铈纳米粒子对大肠杆菌和金黄葡萄球菌的抗菌效果. 最后提出了氧化铈纳米粒子可能的应用前景. 本文将有利于对氧 化铈纳米粒子抗菌机理的深入理解, 并为该类材料在未来的设计 和应用提供借鉴.

Notes

Acknowledgments

We gratefully acknowledge the support from the National Funds for Excellent Young Scientists of China (21522106), the National Key R&D Program of China (2017YFA0208000), and the 111 Project (B18030) from China.

Author contributions

Du Y and Yan C proposed the overall concept. Zhang M wrote the paper with the guidance from Du Y, Luo F and Zhai X; Zhang M, Zhang C and Zhai X revised the manuscript. All authors contributed to the general discussion.

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Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Mengzhen Zhang (张 萌 真)
    • 1
  • Chao Zhang (张 超)
    • 1
  • Xinyun Zhai (翟 欣 昀)
    • 1
    Email author
  • Feng Luo (罗 锋)
    • 2
  • Yaping Du (杜 亚 平)
    • 1
  • Chunhua Yan (严 纯 华)
    • 1
    • 3
    • 4
  1. 1.Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering & National Institute for Advanced MaterialsNankai UniversityTianjinChina
  2. 2.IMDEA Nanoscience, Faraday 9Ciudad Universitaria de CantoblancoMadridSpain
  3. 3.Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular EngineeringPeking UniversityBeijingChina
  4. 4.College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhouChina

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