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Tuning the Bandgap of Photo-Sensitive Polydopamine/Ag3PO4/Graphene Oxide Coating for Rapid, Noninvasive Disinfection of Implants
Open accessAbstract
High Resolution Image Download MS PowerPoint Slide Bacterial infection and associated complications are threats to human health especially when biofilms form on biomedical devices and artificial implants. Herein, a hybrid polydopamine (PDA)/Ag 3 PO 4 /graphene oxide (GO) coating is designed and constructed to achieve rapid bacteria killing and eliminate biofilms in situ. By varying the amount of GO in the hybrid coating, the bandgap can be tuned from 2.52 to 2.0 eV so that irradiation with 660 nm visible light produces bacteria-killing effects synergistically in concert with reactive oxygen species (ROS). GO regulates the release rate of Ag + to minimize the cytotoxicity while maintaining high antimicrobial activity, and a smaller particle size enhances the yield of ROS. After irradiation with 660 nm visible light for 15 min, the antimicrobial rates of the PDA/Ag 3 PO 4 /GO hybrid coating against Escherichia coli and Staphylococcus aureus are 99.53% and 99.66%, respectively. In addition, this hybrid coating can maintain a repeatable and sustained antibacterial efficacy. The released Ag + and photocatalytic Ag 3 PO 4 produce synergistic antimicrobial effects in which the ROS increases the permeability of the bacterial membranes to increase the probability of Ag + to enter the cells to kill them together with ROS synergistically.
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Citations
Cited by
Wang, C., Wang, M., Xu, T., Zhang, X., Lin, C., Gao, W., Xu, H., Lei, B., & Mao, C. (2019) · Theranostics · doi:10.7150/thno.29766 · Cited by 908
Self-citationEmerging photothermal-derived multimodal synergistic therapy in combating bacterial infections
Huo, J., Jia, Q., Huang, H., Zhang, J., Li, P., Dong, X., & Huang, W. (2021) · Chemical Society Reviews · doi:10.1039/d1cs00074h · Cited by 847
Zhou, L., Zheng, H., Liu, Z., Wang, S., Liu, Z., Chen, F., Zhang, H., Kong, J., Zhou, F., & Zhang, Q. (2021) · ACS Nano · doi:10.1021/acsnano.0c06287 · Cited by 382
Photocatalytic Antimicrobials: Principles, Design Strategies, and Applications
Ran, B., Ran, L., Wang, Z., Liao, J., Li, D., Chen, K., Cai, W., Hou, J., & Peng, X. (2023) · Chemical Reviews · doi:10.1021/acs.chemrev.3c00326 · Cited by 357
Buchman, J. T., Hudson-Smith, N. V., Landy, K. M., & Haynes, C. L. (2019) · Accounts of Chemical Research · doi:10.1021/acs.accounts.9b00053 · Cited by 304
Metadata
- Authors
- Xie, X., Mao, C., Liu, X., Tan, L., Cui, Z., Yang, X., Zhu, S., Li, Z., Yuan, X., Zheng, Y., Yeung, K. W. K., Chu, P. K., & Wu, S.
- Venue
- ACS Central Science
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-06-05
- Volume
- 4
- Issue
- 6
- Pages
- 724-738
- ISSN
- 2374-7943 (ISSN-L)
- 2374-7951
- OpenAlex
- W2806260871
- Cited by
- 271
- References
- 0
- FWCI
- 24.52
- Type
- journal article
- Language
- en
- Open access
- diamond
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- Xie, X., Mao, C., Liu, X., Tan, L., Cui, Z., Yang, X., Zhu, S., Li, Z., Yuan, X., Zheng, Y., Yeung, K. W. K., Chu, P. K., & Wu, S. (2018). Tuning the Bandgap of Photo-Sensitive Polydopamine/Ag3PO4/Graphene Oxide Coating for Rapid, Noninvasive Disinfection of Implants. ACS Central Science. https://doi.org/10.1021/acscentsci.8b00177
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