The problems of bacterial resistance and high oxidation level severely limit wound healing. Therefore, we constructed a multifunctional platform of chitosan quaternary ammonium salts (QCS)/polyvinyl alcohol (PVA)/polyethylene glycol (PEG) hydrogels (QPP) loaded with ZnO@CeO2 (ZC-QPP). Firstly, the hydrogel was co-cross-linked by hydrogen and borate ester bonds, which allows easy adherence to a tissue surface for offering a protective barrier and moist environment for wounds. The chitosan quaternary ammonium salts due to their amino groups have inherent antibacterial properties to induce bacterial death. In response to the acidic conditions of the bacterial infection microenvironment, the borate ester bonds in the QPP hydrogel break and the ZC NCs dispersed in the hydrogel are released. The gradual dissociation of Zn2+ under acidic conditions can directly damage bacterial membranes. The wound site of bacterial infection always causes overexpression of reactive oxygen species (ROS) levels, often leading to inflammation and preventing rapid wound repair. CeO2 can eliminate excess ROS to reduce the inflammatory response. From in vitro and in vivo results, the high biosafety of the ZC-QPP hydrogel has demonstrated excellent antibacterial and antioxidant performance to enhance wound healing. Therefore, the ZC-QPP hydrogel opens a method to develop multifunctional synergistic therapeutic platforms combining enzyme-like nanomaterials with hydrogels for synergistic antibacterial and antioxidant treatment to promote wound healing. A ZC-QPP hydrogel with antibacterial and antioxidant properties has been successfully prepared, which can exhibit antibacterial and anti-inflammatory effects to ensure rapid wound healing.
基金:
National Natural Science Foundation of China [52272280, 21978165, 92156020, 82172183]; Class III Peak Discipline of ShanghaiMaterials Science and Engineering (High-Energy Beam Intelligent Processing and Green Manufacturing); Science and Technology Commission of Shanghai [20DZ2255900]; Project of Key Medical Discipline Group Construction in Shanghai Pudong New Area [PWZxq2022-13]; Changning District Committee of Science and Technology [CNKW2022Y07]; Shanghai Changning ''Quality-Balance'' Research Talent Development Fund [CNJH10]
第一作者机构:[1]Shanghai Univ Engn Sci, Shanghai Engn Res Ctr Pharmaceut Intelligent Equi, Shanghai Frontiers Sci Res Ctr Druggabil Cardiova, Sch Chem & Chem Engn,Inst Frontier Med Technol, Shanghai 201620, Peoples R China
共同第一作者:
通讯作者:
通讯机构:[1]Shanghai Univ Engn Sci, Shanghai Engn Res Ctr Pharmaceut Intelligent Equi, Shanghai Frontiers Sci Res Ctr Druggabil Cardiova, Sch Chem & Chem Engn,Inst Frontier Med Technol, Shanghai 201620, Peoples R China[2]Shanghai Pudong New Area Peoples Hosp, Dept Emergency & Crit Care Med, Shanghai, Peoples R China
推荐引用方式(GB/T 7714):
Zhang Ziwen,Wang Jinxia,Luo Yu,et al.A pH-responsive ZC-QPP hydrogel for synergistic antibacterial and antioxidant treatment to enhance wound healing[J].JOURNAL OF MATERIALS CHEMISTRY B.2023,11(38):9300-9310.doi:10.1039/d3tb01567j.
APA:
Zhang, Ziwen,Wang, Jinxia,Luo, Yu,Li, Chunlin,Sun, Yangang...&Liu, Xijian.(2023).A pH-responsive ZC-QPP hydrogel for synergistic antibacterial and antioxidant treatment to enhance wound healing.JOURNAL OF MATERIALS CHEMISTRY B,11,(38)
MLA:
Zhang, Ziwen,et al."A pH-responsive ZC-QPP hydrogel for synergistic antibacterial and antioxidant treatment to enhance wound healing".JOURNAL OF MATERIALS CHEMISTRY B 11..38(2023):9300-9310