Abstract
The present investigation was aimed to evaluate in vivo wound healing activity of astaxanthin incorporated collagen hydrogel film biomaterials extracted from the outer skin waste of squid Doryteuthis singhalensis, to releases antibiotic, delivering potentialities of excisional and incisional wound model in Wistar rats. These results suggested that the astaxanthin incorporated collagen film (ACF) and gentamicin incorporated collagen film (GCF) exhibited excellent wound healing activity (71%) in both full thickness excision and linear incision in rats. The in-vitro antioxidant abilities of extracted astaxanthin exhibited strongly significant 1,1‑diphenyl‑2‑picrylhydrazyl (DPPH) radical scavenging activity. In addition, tensile strength, epithelialization, hydroxyproline content and protein content in ACF and GCF treated groups were significantly increased. Histopathological assessment revealed an increase in collagen content, fibroblasts, granulation, thickness of scar formation, effective neovascularization and faster epithelialization within the short duration after the treatment of ACF and GCF compared to the control groups. The structure of prepared ACF and GCF biomaterials were characterized by SEM, EDS, and XRD. The in vivo biological study of the collagen-based film releases the antibiotic substance. The composite of collagen based biomaterials displays a promising biocompatibility through the dermal wound healing process as well as an evidence of biodegradability. Thus, the marine-derived biomaterials gave a substantial pledge for the development of biodegradable materials in drug delivery and soft tissue regeneration process.
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