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Shen H, Xie P, Yi R, Zhou J, Huang S, Zhang L, Huang X, Zhao J, Wang S, Zhu C. Polydopamine-polyethylenimine nanoparticles with photothermal-antimicrobial synergy for enhanced wound healing. J Colloid Interface Sci 2025; 694:137713. [PMID: 40311312 DOI: 10.1016/j.jcis.2025.137713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2025] [Revised: 04/24/2025] [Accepted: 04/25/2025] [Indexed: 05/03/2025]
Abstract
Bacterial infections significantly impede wound healing and can lead to severe complications, posing a substantial threat to public health. In this study, we developed polydopamine-polyethyleneimine (PDA-PEI) nanoparticles with photothermal properties, loaded with the antimicrobial peptide Polymyxin B (PMB), to address bacterial infections and promote wound healing. The dendritic structure of PEI enhances drug loading capacity, while the photothermal effect of PDA, activated by near-infrared (NIR) light, synergistically enhances the antibacterial efficacy of PMB. The synthesized PDA-PEI-PEG-PMB (P4) nanoparticles demonstrated excellent biocompatibility. They achieved over 96% inhibition againstStaphylococcus aureus(S. aureus) and 99.73% inhibition againstEscherichia coli(E. coli). The nanoparticles (NPs) exhibited a high photothermal conversion efficiency of 44.9%, enabling effective bacterial eradication under NIR irradiation. Furthermore, P4 NPs promoted angiogenesis and fibroblast activity, accelerating wound healing in a murine model. This study presents a promising strategy for combining photothermal therapy with antimicrobial peptides, offering a novel approach to wound care with broad-spectrum antibacterial activity and enhanced healing properties.
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Affiliation(s)
- Hanchun Shen
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, China
| | - Pei Xie
- Department of Gastroenterology, Shanghai Institute of Pancreatic Diseases, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Renjie Yi
- Department of Gastroenterology, Ganzhou People's Hospital, No. 16 Meiguan Road, Ganzhou 341000 Jiangxi Province, China
| | - Jiamei Zhou
- Department of Gastroenterology, Ganzhou People's Hospital, No. 16 Meiguan Road, Ganzhou 341000 Jiangxi Province, China
| | - Shenggang Huang
- Department of Gastroenterology, Ganzhou People's Hospital, No. 16 Meiguan Road, Ganzhou 341000 Jiangxi Province, China
| | - Liang Zhang
- Department of Gastroenterology, Shanghai Institute of Pancreatic Diseases, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Xiaojuan Huang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, China
| | - Jiulong Zhao
- Department of Gastroenterology, Shanghai Institute of Pancreatic Diseases, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Shige Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, China.
| | - Chunping Zhu
- Department of Gastroenterology, Ganzhou People's Hospital, No. 16 Meiguan Road, Ganzhou 341000 Jiangxi Province, China.
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Sabapathy PC, Parthiban A, Bhusal CK, Singh S, Sehgal R, Qi X. Recent improvements in starch films with cellulose and its derivatives–A review. J Taiwan Inst Chem Eng 2024:105920. [DOI: 10.1016/j.jtice.2024.105920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2025]
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