Self-Powered Electrodeposition System for Sub-10-nm Silver Nanoparticles with High-Efficiency Antibacterial Activity

Jianghong Zhang, Qinghao Xu, Hang Li, Siyuan Zhang, Anjin Hong, Yawei Jiang, Ning Hu, Guoliang Chen, Haoyang Fu, Ming Yuan, Baoying Dai, Liang Chu, Dongliang Yang, Yannan Xie

科研成果: 期刊稿件文章同行评审

34 引用 (Scopus)

摘要

Recently, silver nanoparticles (AgNPs) have been widely applied in sterilization due to their excellent antibacterial properties. However, AgNPs require rigorous storage conditions because their antibacterial performances are significantly affected by environmental conditions. Instant fabrication provides a remedy for this drawback. In this study, we propose a self-powered electrodeposition system to synthesize sub-10-nm AgNPs, consisting of a triboelectric nanogenerator (TENG) as the self-powered source, a capacitor for storing electrical energy from the TENG, and an electrochemical component for electrodeposition. The self-powered system with larger capacitance and discharging voltage tends to deliver smaller AgNPs due to the nucleation mechanism dominated by current density. Furthermore, antibacterial tests reveal that compared to direct current (DC) electrodeposition, the TENG-based electrodeposition can synthesize finer-sized AgNPs (<10 nm) with overwhelming antibacterial effect against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) (with 100% efficiency at 2 h). This work provides a new strategy for the self-powered, instant, and controllable electrodeposition of nanoparticles.

源语言英语
页(从-至)6721-6730
页数10
期刊Journal of Physical Chemistry Letters
13
29
DOI
出版状态已出版 - 28 7月 2022

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