Dihydromyricetin-loaded cerium oxide nanoparticles promote deep burn wound healing.
- 2026-03-31
- Biomedical materials (Bristol, England) 21(2)
- Zhaonan Wang
- Xiaozheng Ding
- Chengwang Ge
- Yekai Xu
- Jin Wang
- Chen Zhou
- Xueshan Wang
- Yan Ma
- Deguang Chen
- PubMed: 41861405
- DOI: 10.1088/1748-605x/ae5565
Study Design
- Population
- rats with deep burn wounds
- Methods
- Synthesis of CeO2@DMY nanoparticles; in vitro assays for antioxidant, antibacterial, cytotoxicity, anti-inflammatory; in vivo subcutaneous injection into rat burn wounds
Burn is a common form of trauma, and the treatment of burn wounds remains the focus of clinical research. Dihydromyricetin (DMY) exhibits biological activities including antioxidant, anti-inflammatory, and wound-healing promotion, On the other hand, cerium oxide (CeO₂) demonstrates excellent redox properties. This study developed dihydromyricetin-loaded cerium oxide nanoparticles (CeO₂@DMY) to investigate their impact on deep burn wound healing. CeO₂@APTES was synthesized by a hydrothermal method, followed by covalent modification to load DMY, forming the CeO₂@DMY complexes.In vitroexperiments assessed the antioxidant capacity, antibacterial efficacy, cytotoxicity, and anti-inflammatory activity of CeO₂@DMY.In vivoexperiments involved subcutaneous injection of CeO₂@DMY into rat burn wounds to evaluate its effects on wound healing. CeO₂@DMY exhibited potent antioxidant and antibacterial capabilitiesin vitro. It enhanced fibroblast viability and effectively scavenged reactive oxygen species.In vivo, CeO₂@DMY accelerated wound closure. Histological analysis revealed reduced inflammatory infiltration, increased connective tissue and neovascularization, elevated collagen deposition, and improved collagen alignment in the CeO₂@DMY group. Immunohistochemistry confirmed significantly upregulated expression of CD31 andα-SMA. CeO₂@DMY integrates antioxidant, antibacterial, and anti-inflammatory functions, enables sustained drug release, and promotes burn wound healing. It presents a promising therapeutic strategy for deep burn injuries.