Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysore-570006, India.
Institute of Excellence, VijnanaBhavan, University of Mysore, Manasagangotri, Mysore-570006, India.
Biomolecules. 2021 Feb 10;11(2):259. doi: 10.3390/biom11020259.
This work reports an eco-friendly synthesis of silver nanoparticles (AgNPs) using endophytic bacteria, isolated from the stem bark of . The synthesis of AgNPs was confirmed by visual observation as a change in color of the bacterial solution impregnated with silver. Further, the morphology of the AgNPs, average size, and presence of elemental silver were characterized by UV-Visible spectroscopy, scanning electron microscopy, and dynamic light scattering spectroscopy. The roles of endophytic secondary metabolites in the metal reduction, stabilization, and capping of silver nanoparticles were studied by qualitative FTIR spectral peaks. The antimicrobial ability of AgNPs was evaluated against Gram-positive ( and Gram-negative ( bacteria and pearl millet blast disease-causing fungi (). The biosynthesized AgNPs showed good antibacterial and antifungal activities. AgNPs effectively inhibited the bacterial growth in a dose-dependent manner and presented as good antifungal agents towards the growth of
这项工作报道了一种使用内生细菌从茎皮中分离出来的环保型银纳米粒子（AgNPs）的合成方法。AgNPs 的合成通过浸渍有银的细菌溶液的颜色变化来确认。此外，AgNPs 的形态、平均尺寸和元素银的存在通过紫外-可见光谱、扫描电子显微镜和动态光散射光谱进行了表征。通过定性 FTIR 光谱峰研究了内生次生代谢物在金属还原、稳定和银纳米粒子封端中的作用。AgNPs 的抗菌能力针对革兰氏阳性（和革兰氏阴性（细菌和珍珠粟爆发病原真菌（）进行了评估。生物合成的 AgNPs 表现出良好的抗菌和抗真菌活性。AgNPs 以剂量依赖的方式有效抑制细菌生长，并表现出对
