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Photo-responsive chitosan/Ag/MoS2 for rapid bacteria-killing
Abstract
Bacterial infection is a serious problem threatening human health. The chitosan (CS)-modified MoS2 coating loaded with silver nanoparticles (Ag NPs) was designed on the surface of titanium (Ti) to kill bacteria rapidly and efficiently under 660 nm visible light. Ag/MoS2 exhibited high photocatalytic activity due to the rapid transfer of photo-inspired electrons from MoS2 to Ag NPs, resulting in higher yields of radical oxygen species (ROS) to kill bacteria. The covering of CS made the composite coating positively charged to further enhance the antibacterial property of the coating. In addition, CS/Ag/MoS2-Ti also showed a certain photothermal effect. in vitro results showed that the antibacterial efficiency of the coating on Staphylococcus aureus and Escherichia coli was 98.66% and 99.77% respectively, when the coating was irradiated by 660 nm visible light for 20 min. Cell culture tests showed that CS/Ag/MoS2-Ti had no adverse effects on cell growth. Hence, this surface system will be a very promising strategy for eliminating bacterial infection on biomedical device and implants safely and effectively within a short time.
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Cites
Dopamine Modified Organic–Inorganic Hybrid Coating for Antimicrobial and Osteogenesis
Li, M., Liu, X., Xu, Z., Yeung, K. W. K., & Wu, S. (2016) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.6b09457 · Cited by 154
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Cited by
Emerging 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
Metadata
- Authors
- Zhu, M., Liu, X., Tan, L., Cui, Z., Liang, Y., Li, Z., Kwok Yeung, K. W., & Wu, S.
- Venue
- Journal of Hazardous Materials
- Publisher
- Elsevier BV
- Published
- 2020-02
- Volume
- 383
- Pages
- 121122
- ISSN
- 0304-3894 (ISSN-L)
- OpenAlex
- W2970500607
- Cited by
- 207
- References
- 1
- FWCI
- 6.44
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhu, M., Liu, X., Tan, L., Cui, Z., Liang, Y., Li, Z., Kwok Yeung, K. W., & Wu, S. (2020). Photo-responsive chitosan/Ag/MoS2 for rapid bacteria-killing. Journal of Hazardous Materials. https://doi.org/10.1016/j.jhazmat.2019.121122
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