High-entropy nanozyme-driven "Chinese acupuncture" hydrogel microneedles for combined therapy of infected scalds
文献类型： 外文期刊
作者： Li, Hui 1 ; Ren, Yuwei 1 ; Zhan, Ying 1 ; Yu, Xiaoyu 1 ; Zhang, Xin 1 ; Chen, Hongzhou 1 ; Li, Qi 1 ; Cheng, Jianghua 2 ; Ye, Yingwang 1 ;
作者机构： 1.Hefei Univ Technol, Engn Res Ctr Bioproc, Sch Food & Biol Engn, Key Lab Anim Food Green Mfg & Resource Min Anhui P, Hefei 230009, Peoples R China
2.Anhui Acad Agr Sci, Inst Agroprod Proc, Anhui Engn Lab Food Microbial Fermentat & Funct Ap, Hefei 230036, Peoples R China
关键词： High-entropy nanozyme; Hydrogel microneedles; Resistant Listeria monocytogenes; Antimicrobial therapy; Scalds healing
期刊名称：MATERIALS TODAY BIO （ 影响因子：10.2； 五年影响因子：10.2 ）
ISSN： 2590-0064
年卷期： 2025 年 33 卷
页码：
收录情况： SCI
摘要： Bacterial infections, especially those caused by antibiotic-resistant Listeria monocytogenes (L. monocytogenes), hinder the healing of scalds in food processing environments. This study developed a high-entropy nanozyme (HEzyme) hydrogel system that exhibited efficient reactive oxygen species (ROS) and photothermal antibacterial effects. The HEzyme was synthesized using a carbon-oxygen-silicon framework-assisted method, incorporating multiple metal species (CoNiCuZnCe). It demonstrated superior catalytic efficiency, generating hydroxyl radicals (center dot OH) from hydrogen peroxide (H2O2). Exposure to 808 nm irradiation caused a rapid temperature increase, enabling photothermal effect. HEzyme was integrated into a chitosan-based hydrogel microneedle system, which generated ROS and heat when exposed to H2O2 and irradiation. The microneedles, designed for transdermal use, enhanced wound healing and minimized inflammation. In vitro and in vivo tests confirmed that the microneedles effectively eradicated L. monocytogenes and accelerated tissue healing. This approach offers a promising solution for treating antibiotic-resistant infections and promoting healing in scald wounds.
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