Department of Nature Engineering, Faculty of Natural Resources and Earth Sciences, University of Kashan, Kashan, Iran.
BMC Biotechnol. 2024 Jan 23;24(1):5. doi: 10.1186/s12896-023-00828-z.
Recently there have been a variety of methods to synthesize silver nanoparticles, among which the biosynthesis method is more noticeable due to features like being eco-friendly, simple, and cost-efficient. The present study aims for the green synthesis of silver nanoparticles from the extract of the three plants A. wilhelmsi, M. chamomilla, and C. longa; moreover, it pledges to measure the antibacterial activity against some variants causing a skin rash. The morphology and size of the synthesized silver nanoparticles were evaluated by UV.vis, XRD, SEM, and FTIR analyses. Then results showed a color alteration from light yellow to dark brown and the formation of silver nanoparticles. The absorption peak with the wavelength of approximately 450 nm resulting from the Spectrophotometry analysis confirmed the synthesis of silver nanoparticles. The presence of strong and wide peaks in FTIR indicated the presence of OH groups. The SEM results showed that most synthesized nanoparticles had a spherical angular structure and their size was about 10 to 20 nm. The highest inhibition power was demonstrated by silver nanoparticles synthesized from the extract combined from all three species against Gram-positive bacteria Staphylococcus aureus and Staphylococcus epidermidis (23 mm) which had a performance far more powerful than the extract. Thus, it can be understood that the nanoparticles synthesized from these three species can act as potential environment-friendly alternatives to inhibit some variations causing skin disorders; an issue that calls for further clinical studies.
最近有各种各样的方法来合成银纳米粒子，其中生物合成方法由于环保、简单和经济高效等特点更为引人注目。本研究旨在从三种植物 A. wilhelmsi、M. chamomilla 和 C. longa 的提取物中绿色合成银纳米粒子，并测量其对引起皮疹的一些变体的抗菌活性。合成的银纳米粒子的形貌和尺寸通过紫外-可见分光光度计、XRD、SEM 和 FTIR 分析进行了评估。结果表明，颜色从浅黄色变为深棕色，形成了银纳米粒子。分光光度分析得出的约 450nm 波长的吸收峰证实了银纳米粒子的合成。FTIR 中存在强而宽的峰表明存在 OH 基团。SEM 结果表明，大多数合成的纳米粒子具有球形角状结构，其尺寸约为 10 至 20nm。由三种植物提取物组合合成的银纳米粒子对革兰氏阳性菌金黄色葡萄球菌和表皮葡萄球菌（23mm）表现出最强的抑制能力，其性能远远优于提取物。因此，可以理解，从这三种植物中合成的纳米粒子可以作为潜在的环保替代品，抑制引起皮肤疾病的一些变异；这是一个需要进一步临床研究的问题。
