There is a growing public interest in utilizing biomass and biomaterials to obtain products with high sustainability and less harm to the environment. This study reports on using electrospinning technique to produce nanofiber membranes based on homogeneous polymeric blends of gum Arabic, polyvinyl alcohol, and silver nanoparticles. The produced interconnected membranes were cross-linked via heat and plasma treatments, and the membranes were characterized for their chemical and physical characteristics. Fourier transform infrared spectroscopy shows a cross-linking of gum Arabic and polyvinyl alcohol through esterification during the heat treatment, and through graft polymerization with methyl groups after methane plasma treatment. The mechanical performance of the membranes showed an increase in the modulus of elasticity in the longitudinal direction (parallel to electrospun nanofibers) from 85 ± 4 MPa to 148 ± 5 MPa compared with the transverse direction. Also, well-dispersed nanoparticles in the spinning solution tend to increase the elasticity from 41 ± 3 MPa to 148 ± 5 MPa, while the agglomeration of these nanoparticles decreases the mechanical properties of the nanofibers. Results of the biodegradation tests confirmed the significant biodegradable nature of the produced nanofibers, where 99.09% of the material was degraded within 28 days. Moreover, samples showed significant bactericidal activity against Micrococcus luteus with significantly less-observed bacteria in the measured plate, while the inhibition zone for Escherichia coli was 1 cm. The produced biodegradable electrospun membranes have multiple potential applications in many fields; especially for medical, antibacterial, and food packaging. This work reports the results for moisture and oxygen transfer of the membranes as a proposed application in food wrapping.

中文翻译：

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评估可生物降解的阿拉伯树胶/PVA/Ag纳米纤维膜作为潜在包装材料的化学和物理特性

利用生物质和生物材料来获得具有高可持续性和对环境危害较小的产品，公众越来越感兴趣。本研究报告了使用静电纺丝技术生产基于阿拉伯树胶、聚乙烯醇和银纳米颗粒的均质聚合物混合物的纳米纤维膜。产生的互连膜通过热处理和等离子体处理交联，并表征膜的化学和物理特性。傅里叶变换红外光谱显示阿拉伯树胶和聚乙烯醇在热处理过程中通过酯化发生交联，在甲烷等离子体处理后通过甲基接枝聚合。与横向相比，膜的机械性能显示纵向（平行于电纺纳米纤维）的弹性模量从 85 ± 4 MPa 增加到 148 ± 5 MPa。此外，纺丝溶液中分散良好的纳米颗粒倾向于将弹性从 41 ± 3 MPa 增加到 148 ± 5 MPa，而这些纳米颗粒的团聚降低了纳米纤维的机械性能。生物降解测试的结果证实了所生产的纳米纤维具有显着的生物降解性，其中 99.09% 的材料在 28 天内降解。此外，样品对藤黄微球菌显示出显着的杀菌活性，在测量板中观察到的细菌显着较少，而对大肠杆菌的抑菌圈为 1 cm。生产的可生物降解电纺膜在许多领域具有多种潜在应用；特别适用于医疗、抗菌和食品包装。这项工作报告了薄膜的水分和氧气转移结果，作为食品包装中的拟议应用。