Metallic‐Polyphenolic Nanoparticles Reinforced Cationic Guar Gum Hydrogel for Effectively Treating Burn Wound

• Published in: Macromolecular bioscience 2024-03, Vol.24 (3), p.e2300396-n/a
• Main Authors: Bai, Yangjing, Lang, Shiying, Du, Yangrui, Hu, Qinsheng, Li, Xinyun, Liu, Gongyan
• Format: Article
• Language: English
• Subjects: Anti-Bacterial Agents - pharmacology; antibacterial and anti‐inflammation; Antiinfectives and antibacterials; Benzaldehydes; burn wound treatment; Burns - drug therapy; Catechols; cation guar gum hydrogels; Cations; E coli; Escherichia coli; Galactans; Guar gum; Humans; Hydrogels; Hydrogels - pharmacology; Inflammation; Mannans; Metal Nanoparticles; metallic‐polyphenolic nanoparticles; moisturizing; Nanoparticles; Plant Gums; Vascularization; Wound healing; Zinc
• ISSN: 1616-5187; 1616-5195
• DOI: 10.1002/mabi.202300396

The development of injectable hydrogel dressings which are long‐term moisturizing, easy‐to‐apply, and effectively inhibiting infection and inflammatory is essential to promote burn wound repairing. Herein, an injectable hydrogel with moisturizing, antibacterial, and anti‐inflammation abilities via multiple reversible interactions between cation guar gum (CG) and metallic‐polyphenolic nanoparticles (PA‐ZnII NPs) is developed. Specifically, PA‐ZnII NPs is formed by synergistic complexation of protocatechualdehyde (PA) and zinc ion (Zn2+), provides CGPZ hydrogel with plentiful reversible interactions to inhibit the loss of moist. By interacting with PA‐ZnII NPs, the CGPZ hydrogel can provide enhanced moisturization for more than 3 days. Moreover, the CGPZ hydrogel can maintain good adhesion for a period of time with injection and self‐healing capabilities due to reversible interactions between CG and PA‐ZnII NPs. In addition, CGPZ hydrogel exhibits outstanding broad spectrum antibacterial performance, as its killing efficiency against Escherichia coli and Staphylococcus aureus is all greater than 99.99%. Importantly, compared with commercial dressing, the CGPZ hydrogel can promote wound healing faster by inhibiting tissue damage from dysregulated inflammation and accelerating neovascularization. It is believed that the moisturizing CGPZ hydrogel with antibacterial and anti‐inflammation performance can serve as a promising dressing for the effective treatment of burn wound. An injectable hydrogel with moisturizing, antibacterial, and anti‐inflammatory performance is developed of cationic guar gum and PA‐ZnII nanoparticles formed of protocatechualdehyde and zinc ions. The multifunctional injectable hydrogel can persistently moisturize the burn wound, effectively inhibit bacterial infection and inflammation, significantly improve wound healing efficiency, and provide an effective approach for burn wound care.