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Electrospun Ag-Doped SnO2 Hollow Nanofibers with High Antibacterial Activity

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Abstract

With the continuous improvement in medical science in modern times, the spread of bacterial infection has become a matter of global concern. Therefore, the search for biological medical materials with antibacterial function has become a focus of intense research. In this work, pure SnO2 and Ag-doped SnO2 hollow nanofibers were fabricated by a combination of an electrospinning method and a calcination procedure, and the effects of the doped Ag on antibacterial activity and catalytic antibacterial activity were subsequently investigated. Through the process of high-temperature calcination, a high heating rate would lead to the formation of a hollow tubular structure in SnO2 fibers, and Ag2O would be reduced to Ag0 by a facile process with appropriate thermal treatment. Additionally, the existence of SnO2 as a tetragonal rutile structure was confirmed. On the basis of pure SnO2, doping with Ag greatly improved the antibacterial activity and catalytic antibacterial activity of hollow nanofibers. The formation mechanism and the antibacterial mechanism of pure SnO2 and Ag-doped hollow nanofibers are also discussed. This study has broad application prospects for biological medicine.

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Acknowledgements

This work was supported by a grant from the National Natural Science Foundation of China, China (21677010). We thank LetPub (www.letpub.com) for its linguistic assistance during the preparation of this manuscript.

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Authors and Affiliations

  1. Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China

    Li Yang & Tang Xiaoning

  2. Faculty of Science, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China

    Zhang Bin & Mao Huaming

  3. School of Chemistry, Beihang University, Beijing, 100191, China

    Gao Songwei

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  1. Li Yang
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  2. Gao Songwei
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  3. Zhang Bin
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  4. Mao Huaming
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  5. Tang Xiaoning
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Correspondence to Tang Xiaoning.

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Li, Y., Gao, S., Zhang, B. et al. Electrospun Ag-Doped SnO2 Hollow Nanofibers with High Antibacterial Activity. Electron. Mater. Lett. 16, 195–206 (2020). https://doi.org/10.1007/s13391-020-00203-6

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