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Mao C, Xiang Y, Liu X, Cui Z, Yang X, Li Z, Zhu S, Zheng Y, Yeung KWK, Wu S. Repeatable Photodynamic Therapy with Triggered Signaling Pathways of Fibroblast Cell Proliferation and Differentiation To Promote Bacteria-Accompanied Wound Healing. ACS Nano 2018; 12:1747-1759. [PMID: 29376340 DOI: 10.1021/acsnano.7b08500] [Citation(s) in RCA: 215] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Despite the development of advanced antibacterial materials, bacterial infection is still a serious problem for wound healing because it usually induces severe complications and cannot be eradicated completely. Most current materials cannot simultaneously provide antibacterial activity, reusability, and biocompatibility as well as participate in stimulating cell behaviors to promote bacteria-accompanied wound healing. This work fabricated a hybrid hydrogel embedded with two-dimensional (2D) few-layer black phosphorus nanosheets (BPs) via simple electrostatic interaction. Within 10 min, 98.90% Escherichia coli and 99.51% Staphylococcus aureus can be killed rapidly by this hybrid, due to its powerful ability to produce singlet oxygen (1O2) under simulated visible light. In addition, this hydrogel also shows a high repeatability; that is, the antibacterial efficacy can still reach up to 95.6 and 94.58% against E. coli and S. aureus, respectively, even after challenging bacteria up to four times repeatedly. In vitro and in vivo results reveal that BPs in this hybrid hydrogel can promote the formation of the fibrinogen at the early stages during the tissue reconstruction process for accelerated incrustation. In addition, BPs can also trigger phosphoinositide 3-kinase (PI3K), phosphorylation of protein kinase B (Akt), and extracellular signal-regulated kinase (ERK1/2) signaling pathways for enhanced cellular proliferation and differentiation. Moreover, the hydrogel causes no appreciable abnormalities or damage to major organs (heart, liver, spleen, lung, and kidney) in rats during the wound healing process. Therefore, this BP-based hydrogel will have great potential as a safe multimodal therapeutic system for active wound healing and sterilization.
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Affiliation(s)
- Congyang Mao
- School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University , Wuhan 430062, China
| | - Yiming Xiang
- School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University , Wuhan 430062, China
| | - Xiangmei Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University , Wuhan 430062, China
| | - Zhenduo Cui
- School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Xianjin Yang
- School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Zhaoyang Li
- School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Shengli Zhu
- School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Yufeng Zheng
- State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering, College of Engineering, Peking University , Beijing 100871, China
| | - Kelvin Wai Kwok Yeung
- Department of Orthopaedics& Traumatology, Li KaShing Faculty of Medicine, The University of Hong Kong , Pokfulam, Hong Kong, China 999077
| | - Shuilin Wu
- School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University , Wuhan 430062, China
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