Sustained Release and Therapeutic Evaluation of Simvastatin‐Loaded Bioglass–Chitosan Gel Formulation for Skin Regeneration and Wound Healing Potential
TL;DR
Findings suggest that the synthesized hydrogel (BSG‐CHI) provides a favorable microenvironment for tissue regeneration and wound management applications.
Abstract
Chronic wounds pose a major clinical challenge due to a complex pathophysiological condition. It is characterized by persistent inflammation, excessive oxidative stress, and a high risk of bacterial infection, which hinders tissue repair. To address this, a multifunctional hydrogel dressing based on gallic acid conjugated chitosan (G‐CHI) and integrated with simvastatin and heparin‐functionalized Ag/Zn‐doped bioactive glass (HBG). The incorporation of gallic acid improved the structural integrity and viscoelastic behavior of the hydrogel. The release kinetics study demonstrated controlled liberation of Ag + and Zn 2+ ions within biologically safe limits over 24 h, while simvastatin exhibited diffusion‐controlled release behavior. The hydrogel also exhibited desirable adhesive properties, indicating its suitability as a wound dressing material. In vitro biofunctional assays showed enhanced antioxidant activity (~75% free radical scavenging), hemocompatibility (< 5% hemolysis), and effectiveness against both Staphylococcus aureus and Escherichia coli (> 90% efficacy in time kill assay). Further, synergistic release of simvastatin and bioglass showed enhanced proliferation of fibroblast (NIH 3T3), keratinocyte (HaCaT), and endothelial cells (SVEC), accompanied by increased collagen deposition compared to control groups. These findings suggest that the synthesized hydrogel (BSG‐CHI) provides a favorable microenvironment for tissue regeneration and wound management applications.