Journal
INTERNATIONAL JOURNAL OF PHARMACEUTICS
Volume 592, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.ijpharm.2020.120068
Keywords
Skin; Tissue engineering; Biomaterial; Polyvinyl alcohol; Scaffold
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Physically cross-linked hydrogels were developed by freezing-thawing method with different concentrations of honey for accelerated wound healing. The incorporation of honey increased the flexibility, antibacterial properties, and cell viability of hydrogels, while also accelerating wound healing.
In this study, physically cross-linked hydrogels were developed by freezing-thawing method while different concentrations of honey were included into the hydmgels for accelerated wound healing. The hydrogel was composed of chitosan, polyvinyl alcohol (PVA), and gelatin with the ratio of 2:1:1 (v/v), respectively. Further, the effect of honey concentrations on antibacterial properties, and cell behavior was investigated. In vivo studies, including wound healing mechanism using rat model and histological analysis of section tissue samples were performed. The results illustrated that the incorporation of honey in hydrogels increased the ultimate strain of hydmgels approximately two times, while reduced the ultimate tensile strength and elastic modulus of hydrogels. Moreover, the antibacterial activities of samples were increased by increasing the concentration of honey. Regarding MTT assay, as the concentration of honey increased, the cell viability of hydrogels was enhanced until an optimal amount of honey. Further, the integration of honey into the hydrogel matrix results in the maintenance of a well-structured layer of epidermis containing mature collagen and accelerates the rate of wound healing. The 3D Chitosan/PVA/Gelatin hydrogel containing honey with appropriate mechanical, antibacterial activity, and biocompatibility could be a promising approach for wound healing.
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