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Yao H, Fan Y, Emre EST, Li N, Ge M, Wang J, Wei J. Alginate-modified ZnO anti-planktonic and anti-biofilm nanoparticles for infected wound healing. Int J Biol Macromol 2024; 280:135739. [PMID: 39299433 DOI: 10.1016/j.ijbiomac.2024.135739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 09/13/2024] [Accepted: 09/15/2024] [Indexed: 09/22/2024]
Abstract
Bacterial infections is one of the main factors delaying the wound healing, which has become a serious challenge for healthcare systems. Zinc oxide nanoparticles (ZnO NPs), which show broad-spectrum and excellent antibacterial activity, tend to aggregate easily and therefore hardly penetrate into bacterial biofilms, showing limited anti-biofilm properties. Herein，alginate (ALG) modified ZnO NPs (ZnO@ALG) were prepared via the combination of mussel-inspired method and "thiol-Michael" click reaction, which showed excellent dispersion and biocompatibility. Besides, the interactions between ZnO@ALG and bacteria was much better than that of ZnO NPs, and makes the bacteria produced more reactive oxygen species (ROS) than bare ZnO NPs. The anti-planktonic activity of ZnO@ALG (250 μg/mL) could reach almost 100 %, which was 2-3 times higher than that of bare ZnO NPs. In addition, the ZnO@ALG could significantly accelerate the healing of S. aureus infected wounds, and the wound healing rate of ZnO@ALG group was about 79.2 %, which was significantly higher than that of ZnO NPs (~65.8 %). This study demonstrates that the ZnO@ALG holds a great potential in the anti-planktonic and anti-biofilm fields, and the ALG-modification method can be an effective strategy to enhance the antibacterial properties of nanomaterials.
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Affiliation(s)
- Haiyan Yao
- School of Stomatology, Jiangxi Medical College, Nanchang University, Nanchang 330006, China; School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; Jiangxi Province Key Laboratory of Oral Disease, Nanchang 330006, China
| | - Yuan Fan
- School of Stomatology, Jiangxi Medical College, Nanchang University, Nanchang 330006, China; Jiangxi Province Clinical Research Center for Oral Disease, Nanchang 330006, China
| | | | - Na Li
- Department of Stomatology, The First Affiliate Hospital of Nanchang University, Nanchang 330006, China
| | - Min Ge
- School of Stomatology, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Jiaolong Wang
- School of Stomatology, Jiangxi Medical College, Nanchang University, Nanchang 330006, China; Jiangxi Province Key Laboratory of Oral Disease, Nanchang 330006, China; Jiangxi Province Clinical Research Center for Oral Disease, Nanchang 330006, China.
| | - Junchao Wei
- School of Stomatology, Jiangxi Medical College, Nanchang University, Nanchang 330006, China; School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; Jiangxi Province Key Laboratory of Oral Disease, Nanchang 330006, China; Jiangxi Province Clinical Research Center for Oral Disease, Nanchang 330006, China.
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