Physicochemical characteristics of chitosan-based hydrogels modified with equisetum arvense l. (horsetail) extract in view of their usefulness as innovative dressing materials

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Abstract

This work focused on obtaining and characterizing hydrogels with their potential application as dressing materials for chronic wounds. The research included synthesizing chitosan-based hydrogels modified with Equisetum arvense L. (horsetail) extract via photopolymerization, and their characteristics determined with regard to the impact of both the modifier and the amount of crosslinker on their properties. The investigations included determining their sorption properties and tensile strength, evaluating their behavior in simulated physiological liquids, and characterizing their wettability and surface morphology. The release profile of horsetail extract from polymer matrices in acidic and alkaline environments was also verified. It was proved that hydrogels showed swelling ability while the modified hydrogels swelled slightly more. Hydrogels showed hydrophilic nature (all contact angles were <77). Materials containing horsetail extract exhibited bigger elasticity than unmodified polymers (even by 30%). It was proved that the extract release was twice as effective in an acidic medium. Due to the possibility of preparation of hydrogels with specific mechanical properties (depending on both the modifier and the amount of crosslinker used), wound exudates sorption ability, and possibility of the release of active substance, hydrogels show a great application potential as dressing materials.

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APA

Głąb, M., Drabczyk, A., Kudłacik-Kramarczyk, S., Krzan, M., & Tyliszczak, B. (2021). Physicochemical characteristics of chitosan-based hydrogels modified with equisetum arvense l. (horsetail) extract in view of their usefulness as innovative dressing materials. Materials, 14(24). https://doi.org/10.3390/ma14247533

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