Tissue adhesive hyaluronan-quercetin (Ago)@halloysite-fungal carboxymethyl chitosan nanocomposite hydrogels for wound dressing applications

• Published in: International journal of biological macromolecules 2025-01, Vol.284 (Pt 1), p.137849, Article 137849
• Main Authors: Rao, Kummara Madhusudana, Prasad, Mooni Siva, Babu, Anam Giridhar, Rosaiah, P., Karim, Mohammad Rezaul, Han, Sung Soo
• Format: Article
• Language: English
• Subjects: ammonium persulfate; Anti-Bacterial Agents - chemistry; Anti-Bacterial Agents - pharmacology; antibacterial properties; Bandages; biocompatibility; Biocompatible Materials - chemistry; Biocompatible Materials - pharmacology; Cell Survival - drug effects; cell viability; chitosan; Chitosan - analogs & derivatives; Chitosan - chemistry; Chitosan - pharmacology; clay; Clay - chemistry; Composite hydrogels; compression strength; cytotoxicity; Escherichia coli; Escherichia coli - drug effects; fibroblasts; fungi; halloysite; Humans; Hyaluronic Acid - chemistry; Hyaluronic Acid - pharmacology; hydrogels; Hydrogels - chemistry; Hydrogels - pharmacology; nanocomposites; Nanocomposites - chemistry; nanoparticles; Quercetin - analogs & derivatives; Quercetin - chemistry; Quercetin - pharmacology; Silver - chemistry; Silver - pharmacology; Silver nanoparticles; Staphylococcus aureus; Staphylococcus aureus - drug effects; Tissue adhesiveness; Wound dressing; Wound Healing - drug effects
• ISSN: 0141-8130; 1879-0003; 1879-0003
• DOI: 10.1016/j.ijbiomac.2024.137849

This study investigates nanocomposite hydrogels reinforced with hyaluronan-quercetin‑silver nanoparticles intercalated halloysite clay (HAQ-Hal-Ag) for potential application as wound dressings. HAQ-Hal-Ag (at 1, 3, and 5 wt%) was incorporated into a fungal carboxymethyl chitosan (FC)/polyacrylamide (PAM) network (FC-PAM) using methylene bisacrylamide (MBA) as the crosslinker and ammonium persulfate (APS) as the initiator. Various physicochemical analyses were performed to characterize the resulting hydrogels. The compressive strength of the nanocomposite hydrogels exhibited a proportional increase with increasing HAQ-Hal-Ag content, reaching a remarkable 1.04 MPa for hydrogels containing 5 wt% HAQ-Hal-Ag. Additionally, the hydrogels displayed highly porous structures with excellent swelling capacity. Importantly, they exhibited exceptional antibacterial efficacy against Escherichia coli and Staphylococcus aureus. Furthermore, cytotoxicity assays revealed high cell viability and proliferation rates, confirming the biocompatibility of these hydrogels with human dermal fibroblasts. These findings suggest significant promise for the nanocomposite hydrogels as wound dressing materials due to their outstanding biocompatibility, impressive compressive strength, and potent antibacterial activity.