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雪松精油对止血、抗菌和抗氧化聚乙烯醇/雪松油/高岭土复合水凝胶物理和生物学性能的影响

Influence of Cedar Essential Oil on Physical and Biological Properties of Hemostatic, Antibacterial, and Antioxidant Polyvinyl Alcohol/Cedar Oil/Kaolin Composite Hydrogels.

作者信息

Tamer Tamer M, Sabet Maysa M, Alhalili Zahrah A H, Ismail Ahmed M, Mohy-Eldin Mohamed S, Hassan Mohamed A

机构信息

Polymer Materials Research Department, Advanced Technologies and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt.

Central Laboratory, Faculty of Agriculture, Ain Sham University, Cairo 11241, Egypt.

出版信息

Pharmaceutics. 2022 Nov 29;14(12):2649. doi: 10.3390/pharmaceutics14122649.

Abstract

Polyvinyl alcohol (PVA) is a safe and biodegradable polymer. Given the unique physical and chemical properties of PVA, we physically cross-linked PVA with kaolin (K) and cedar essential oil (Ced) using the freeze-thawing approach to fabricate PVA/Ced/K sponge hydrogels as hemostatic, antibacterial, and antioxidant wound healing materials. The physicochemical characteristics of PVA/Ced/K hydrogels, including water swelling profiles and gel fractions, were surveyed. Additionally, the functional groups of hydrogels were explored by Fourier transform infrared spectroscopy (FTIR), while their microstructures were studied using scanning electron microscopy (SEM). Furthermore, the thermal features of the hydrogels were probed by thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). Evidently, alterations in cedar concentrations resulted in significant variations in size, water uptake profiles, and hydrolytic degradation of the hydrogels. The incorporation of cedar into the PVA/K endowed the hydrogels with significantly improved antibacterial competency against () and (). Moreover, PVA/Ced/K exhibited high scavenging capacities toward ABTS and DPPH free radicals. Beyond that, PVA/Ced/K hydrogels demonstrated hemocompatibility and fast blood clotting performance in addition to biocompatibility toward fibroblasts. These findings accentuate the prospective implementation of PVA/Ced/K composite hydrogel as a wound dressing.

摘要

聚乙烯醇(PVA)是一种安全且可生物降解的聚合物。鉴于PVA独特的物理和化学性质,我们采用冻融法将PVA与高岭土(K)和雪松精油(Ced)进行物理交联,以制备PVA/Ced/K海绵水凝胶,用作止血、抗菌和抗氧化的伤口愈合材料。对PVA/Ced/K水凝胶的物理化学特性进行了研究,包括水溶胀曲线和凝胶分数。此外,通过傅里叶变换红外光谱(FTIR)探究了水凝胶的官能团,同时使用扫描电子显微镜(SEM)研究了它们的微观结构。此外,通过热重分析(TGA)和差示扫描量热法(DSC)探究了水凝胶的热特性。显然,雪松浓度的变化导致水凝胶的尺寸、吸水率和水解降解发生显著变化。将雪松掺入PVA/K中赋予了水凝胶对()和()显著提高的抗菌能力。此外,PVA/Ced/K对ABTS和DPPH自由基表现出高清除能力。除此之外,PVA/Ced/K水凝胶除了对成纤维细胞具有生物相容性外,还表现出血液相容性和快速凝血性能。这些发现突出了PVA/Ced/K复合水凝胶作为伤口敷料的潜在应用前景。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/75e8/9785206/211629688ae4/pharmaceutics-14-02649-g001.jpg

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