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Durable antibacterial and UV-protective Ag/TiO2@fabrics for sustainable biomedical application

Authors Li SH, Zhu TX, Huang JY, Guo QQ, Chen GQ, Lai YK

Received 9 January 2017

Accepted for publication 1 March 2017

Published 31 March 2017 Volume 2017:12 Pages 2593—2606

DOI https://doi.org/10.2147/IJN.S132035

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Linlin Sun


Shuhui Li, Tianxue Zhu, Jianying Huang, Qingqing Guo, Guoqiang Chen, Yuekun Lai

National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, People’s Republic of China

Abstract: A facile method was developed to endow cotton fabric with remarkable antibacterial and ultraviolet (UV)-protective properties. The flower-like TiO2 micro-nanoparticles were first deposited onto cotton fabric surface via hydrothermal deposition method. Then, the Ag NPs with a high deposition density were evenly formed onto TiO2@cotton surface by sodium hydroxide solution pretreatment and followed by in situ reduction of ANO3. This work focused on the influence of different hydrothermal reaction durations and the concentration of AgNO3 on antibacterial activity against relevant microorganisms in medicine as well as on the UV-blocking property. Ag NPs-loaded TiO2@cotton exhibited high antibacterial activity with an inhibition rate higher than 99% against Staphylococcus aureus and Escherichia coli bacteria. Moreover, the as-prepared cotton fabric coated with Ag NPs and TiO2 NPs demonstrated outstanding UV protective ability with a high ultraviolet protection factor value of 56.39. Morphological image of the cells revealed a likely loss of viability as a result of the synergistically biocidal effects of TiO2 and Ag on attached bacteria. These results demonstrate a facile and robust synthesis technology for fabricating multifunctional textiles with a promising biocidal activity against common Gram-negative and Gram-positive bacteria.

Keywords: TiO2 nanoparticles, Ag nanoparticles, fabric, antibacterial, UV-shielding, biomedical

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