Polymer Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt.
Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia.
Int J Mol Sci. 2021 Dec 2;22(23):13050. doi: 10.3390/ijms222313050.
The predominant impediments to cutaneous wound regeneration are hemorrhage and bacterial infections that lead to extensive inflammation with lethal impact. We thus developed a series of composite sponges based on polyvinyl alcohol (PVA) inspired by marjoram essential oil and kaolin (PVA/marjoram/kaolin), adopting a freeze-thaw method to treat irregular wounds by thwarting lethal bleeding and microbial infections. Microstructure analyses manifested three-dimensional interconnected porous structures for PVA/marjoram/kaolin. Additionally, upon increasing marjoram and kaolin concentrations, the pore diameters of the sponges significantly increased, recording a maximum of 34 ± 5.8 µm for PVA-M0.5-K0.1. Moreover, the porosity and degradation properties of PVA/marjoram/kaolin sponges were markedly enhanced compared with the PVA sponge with high swelling capacity. Furthermore, the PVA/marjoram/kaolin sponges exerted exceptional antibacterial performance against and , along with remarkable antioxidant properties. Moreover, PVA/marjoram/kaolin sponges demonstrated significant thrombogenicity, developing high thrombus mass and hemocompatibility, in addition to their remarkable safety toward fibroblast cells. Notably, this is the first study to our knowledge investigating the effectiveness of marjoram in a polymeric carrier for prospective functioning as a wound dressing. Collectively, the findings suggest the prospective usage of the PVA-M0.5-K0.1 sponge in wound healing for hemorrhage and bacterial infection control.
皮肤伤口再生的主要障碍是出血和细菌感染,这会导致广泛的炎症,产生致命的影响。因此,我们受牛至精油和高岭土的启发,开发了一系列基于聚乙烯醇(PVA)的复合海绵(PVA/牛至/高岭土),采用冷冻-解冻法来治疗不规则伤口,防止致命性出血和微生物感染。微观结构分析表明,PVA/牛至/高岭土具有三维相互连通的多孔结构。此外,随着牛至和高岭土浓度的增加,海绵的孔径显著增大,PVA-M0.5-K0.1 的最大孔径为 34 ± 5.8 µm。此外,与具有高溶胀能力的 PVA 海绵相比,PVA/牛至/高岭土海绵的孔隙率和降解性能明显增强。此外,PVA/牛至/高岭土海绵对 和 具有出色的抗菌性能,同时具有显著的抗氧化性能。此外,PVA/牛至/高岭土海绵具有出色的血栓形成性,形成高血栓质量和良好的血液相容性,同时对成纤维细胞具有显著的安全性。值得注意的是,这是我们所知的首次研究牛至在聚合物载体中的有效性,有望作为一种伤口敷料发挥作用。总的来说,研究结果表明 PVA-M0.5-K0.1 海绵有望用于控制出血和细菌感染的伤口愈合。