Abstract
The incorporation of herbal extracts in wound dressing materials is an important concept that has been researched recently. In this study, alginate films incorporated in the various ratio (0.25–1% v/v) of Hypericum perforatum extract (HPE) for potential applications of wound dressing were successfully prepared by solvent-casting method. The obtained films were examined for cytotoxicity, in vitro wound healing potential, swelling behavior, antioxidant, and antibacterial properties. When compared to the alginate film (Al) alone, HPE incorporated alginate films (HPE/Al) exhibit improved antioxidant properties according to the results of CUPRAC assay and antioxidant activity increases with the rate of HPE. Also, HPE/Al films exhibited antibacterial activity against E. coli and S. aureus, and addition with the HPE extract into films significantly increased the antibacterial activity against S. aureus. All film samples had no cytotoxic effects on fibroblast cell line and HPE/Al films showed a proliferative effect with high extract concentrations (1%) compared to extract free-films. Also, scratch assay results show that films containing 0.5% (v/v) HPE may have a positive effect on wound healing. The results have shown that the newly developed HPE incorporated alginate films are a candidate as antibacterial, and antioxidant wound dressing for use on burn or excision wounds.
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