1. Gelatin/Dopamine/Zinc-Doped Ceria/Curcumin nanocomposite hydrogels for repair of chronic refractory wounds.
- Author
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Zhao C, Yang J, Chen W, Lu C, Zeng Z, Jiang T, and Liu W
- Subjects
- Animals, Male, Rats, Mice, Anti-Inflammatory Agents administration & dosage, Anti-Inflammatory Agents pharmacology, Anti-Inflammatory Agents chemistry, Skin drug effects, Skin metabolism, Humans, Hydrogels chemistry, Hydrogels administration & dosage, Cerium chemistry, Cerium administration & dosage, Cerium pharmacology, Wound Healing drug effects, Gelatin chemistry, Curcumin administration & dosage, Curcumin chemistry, Curcumin pharmacology, Nanocomposites chemistry, Nanocomposites administration & dosage, Dopamine chemistry, Dopamine administration & dosage, Zinc chemistry, Zinc administration & dosage, Anti-Bacterial Agents administration & dosage, Anti-Bacterial Agents pharmacology, Anti-Bacterial Agents chemistry, Antioxidants administration & dosage, Antioxidants pharmacology, Antioxidants chemistry, Rats, Sprague-Dawley
- Abstract
Chronic wound healing is a common clinical challenge, characterized by bacterial infection, protracted inflammatory response, oxidative stress, and insufficient neovascularization. Nanozymes have emerged as a promising solution for treating skin wounds due to their antioxidant, antibacterial, and angiogenic properties. In recent years, combining nanozymes with hydrogels to jointly promote wound healing has attracted increasing research interest. However, most of the current nanocomposite hydrogels are still not effective in simultaneously controlling inflammatory, oxidative stress and bacterial invasion in wound healing. Improving the therapeutic functional diversity and efficacy of nanocomposite hydrogels remains a problem that needs to be addressed. In this study, we prepared nanocomposite hydrogels (GelMD-Cur@ZHMCe) by combining methylacrylated gelatin modified with dopamine (GelMD) with Zinc-doped hollow mesoporous cerium oxide nanoparticles loaded with curcumin (Cur@ZHMCe). The resulting hydrogels exhibited excellent water absorption, adhesion, and biocompatibility. In vitro and in vivo studies have demonstrated that GelMD-Cur@ZHMCe has excellent antioxidant, antibacterial, anti-inflammatory and vasculature-promoting properties, which enable it to rapidly promote wound repair. The wound healing rate of the rat total skin defect infection model treated with GelMD-Cur@ZHMCe reached 98.5±4.9 % after 14 days of treatment. It was demonstrated that this multifunctional nanocomposite hydrogel provides a promising therapeutic strategy for skin repair., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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