Yufang Ren, Zeyuan Sun, Yong Huang, Xiaoyan An, Xiaona Bian, Zhenhao Cao, Yifan Liu, Kanwal Javed, Tetiana Derkach, Xue Li
{"title":"掺银纳米颗粒的二氧化钛纳米棒复合材料的制备及其在可见光照射下的杀菌性能","authors":"Yufang Ren, Zeyuan Sun, Yong Huang, Xiaoyan An, Xiaona Bian, Zhenhao Cao, Yifan Liu, Kanwal Javed, Tetiana Derkach, Xue Li","doi":"10.1002/ppsc.202300191","DOIUrl":null,"url":null,"abstract":"TiO<sub>2</sub> is a widely used photocatalytic antibacterial material and shows good antibacterial properties under ultraviolet light. However, its antibacterial efficacy under visible light still remains limited. To develop low-cost and biocompatible antibacterial materials, this article provides a facile method for in situ preparation of a trace amount of silver (Ag) doped TiO<sub>2</sub> nanorods (TiO<sub>2</sub>NR–Ag) composites, which cannot only enhance the antibacterial properties under visible light, but also has good biocompatibility. Two representative epidemic strains, <i>Staphylococcus aureus</i> and <i>Escherichia coli</i>, are selected for analysis of the antibacterial properties of the obtained TiO<sub>2</sub>NR–Ag composite nanoparticles. The results demonstrate that even if the Ag doping level is as low as 2.5 × 10<sup>−4</sup> wt% (i.e., Ag/TiO<sub>2</sub> = 2.50 µg g<sup>−1</sup>), the TiO<sub>2</sub>NR–Ag composite nanoparticle coatings are transparent and exhibit exceptional antibacterial properties, which is attributed to synergistic enhanced bactericidal effect of the active substances generated by TiO<sub>2</sub>NR–Ag under visible light. The cytotoxicity and hemolysis rate results indicate that TiO<sub>2</sub>NR–Ag composite exhibit excellent biocompatibility. This study effectively improves the antibacterial effect of TiO<sub>2</sub> photocatalytic nanomaterials while maintaining their biocompatibility, and the prepared TiO<sub>2</sub>NR–Ag composite nanoparticles can be applied in various fields such as window glasses, medical device surfaces, furniture surfaces, and optical devices, etc.","PeriodicalId":19903,"journal":{"name":"Particle & Particle Systems Characterization","volume":"70 1","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preparation of TiO2 Nanorods Composites Doped with Silver Nanoparticles and Their Bactericidal Properties under Visible Light Irradiation\",\"authors\":\"Yufang Ren, Zeyuan Sun, Yong Huang, Xiaoyan An, Xiaona Bian, Zhenhao Cao, Yifan Liu, Kanwal Javed, Tetiana Derkach, Xue Li\",\"doi\":\"10.1002/ppsc.202300191\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"TiO<sub>2</sub> is a widely used photocatalytic antibacterial material and shows good antibacterial properties under ultraviolet light. However, its antibacterial efficacy under visible light still remains limited. To develop low-cost and biocompatible antibacterial materials, this article provides a facile method for in situ preparation of a trace amount of silver (Ag) doped TiO<sub>2</sub> nanorods (TiO<sub>2</sub>NR–Ag) composites, which cannot only enhance the antibacterial properties under visible light, but also has good biocompatibility. Two representative epidemic strains, <i>Staphylococcus aureus</i> and <i>Escherichia coli</i>, are selected for analysis of the antibacterial properties of the obtained TiO<sub>2</sub>NR–Ag composite nanoparticles. The results demonstrate that even if the Ag doping level is as low as 2.5 × 10<sup>−4</sup> wt% (i.e., Ag/TiO<sub>2</sub> = 2.50 µg g<sup>−1</sup>), the TiO<sub>2</sub>NR–Ag composite nanoparticle coatings are transparent and exhibit exceptional antibacterial properties, which is attributed to synergistic enhanced bactericidal effect of the active substances generated by TiO<sub>2</sub>NR–Ag under visible light. The cytotoxicity and hemolysis rate results indicate that TiO<sub>2</sub>NR–Ag composite exhibit excellent biocompatibility. 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Preparation of TiO2 Nanorods Composites Doped with Silver Nanoparticles and Their Bactericidal Properties under Visible Light Irradiation
TiO2 is a widely used photocatalytic antibacterial material and shows good antibacterial properties under ultraviolet light. However, its antibacterial efficacy under visible light still remains limited. To develop low-cost and biocompatible antibacterial materials, this article provides a facile method for in situ preparation of a trace amount of silver (Ag) doped TiO2 nanorods (TiO2NR–Ag) composites, which cannot only enhance the antibacterial properties under visible light, but also has good biocompatibility. Two representative epidemic strains, Staphylococcus aureus and Escherichia coli, are selected for analysis of the antibacterial properties of the obtained TiO2NR–Ag composite nanoparticles. The results demonstrate that even if the Ag doping level is as low as 2.5 × 10−4 wt% (i.e., Ag/TiO2 = 2.50 µg g−1), the TiO2NR–Ag composite nanoparticle coatings are transparent and exhibit exceptional antibacterial properties, which is attributed to synergistic enhanced bactericidal effect of the active substances generated by TiO2NR–Ag under visible light. The cytotoxicity and hemolysis rate results indicate that TiO2NR–Ag composite exhibit excellent biocompatibility. This study effectively improves the antibacterial effect of TiO2 photocatalytic nanomaterials while maintaining their biocompatibility, and the prepared TiO2NR–Ag composite nanoparticles can be applied in various fields such as window glasses, medical device surfaces, furniture surfaces, and optical devices, etc.
期刊介绍:
Particle & Particle Systems Characterization is an international, peer-reviewed, interdisciplinary journal focusing on all aspects of particle research. The journal joined the Advanced Materials family of journals in 2013. Particle has an impact factor of 4.194 (2018 Journal Impact Factor, Journal Citation Reports (Clarivate Analytics, 2019)).
Topics covered include the synthesis, characterization, and application of particles in a variety of systems and devices.
Particle covers nanotubes, fullerenes, micelles and alloy clusters, organic and inorganic materials, polymers, quantum dots, 2D materials, proteins, and other molecular biological systems.
Particle Systems include those in biomedicine, catalysis, energy-storage materials, environmental science, micro/nano-electromechanical systems, micro/nano-fluidics, molecular electronics, photonics, sensing, and others.
Characterization methods include microscopy, spectroscopy, electrochemical, diffraction, magnetic, and scattering techniques.