Abstract

The present study is aimed at drawing the synergies by combining the microbial potential of Silver nanoparticles, the medicinally important plant and develop biodegradable nanocomposites. The silver nanoparticles (AgNPs) were in situ generated in Pongamia pinnata leaf extract infused cellulose. The cellulose, the matrix, and the resulting nanocomposite films were characterized. The Fourier transform infrared spectra, confirms that the amide groups present in the leaf extract are responsible for the formation of AgNPs through the reduction process, the energy dispersive X-ray analysis and the scanning electron microscopy revealed that the average AgNPs size is around 76 nm. These cellulose nanocomposites films showed enhanced tensile properties, indicating the reinforcing effect of AgNPs. The antibacterial studies shown good antibacterial activity against Escherichia coli. These studies validate the feasibility of using pinnata leaves for in situ generations of AgNPs in modified cellulose matrix, which makes these nanocomposite suitable for food and medical applications.

摘要

本研究旨在通过结合银纳米粒子（具有药用价值的植物）的微生物潜力来发挥协同作用，并开发可生物降解的纳米复合材料。银纳米粒子 (AgNPs)在Pongamia pinnata中原位生成叶提取物注入纤维素。对纤维素、基质和所得纳米复合膜进行表征。傅里叶变换红外光谱证实，叶提取物中存在的酰胺基团是通过还原过程形成 AgNPs 的原因，能量色散 X 射线分析和扫描电子显微镜显示平均 AgNPs 尺寸约为 76 nm . 这些纤维素纳米复合薄膜表现出增强的拉伸性能，表明 AgNPs 的增强作用。抗菌研究表明对大肠杆菌具有良好的抗菌活性。这些研究验证了使用羽扇豆叶进行原位处理的可行性 在改性纤维素基质中生成了几代 AgNPs，这使得这些纳米复合材料适用于食品和医疗应用。