In this study, we report the green synthesis of silver nanoparticles (AgNPs) using Zanthoxylum armatum stem extract. The characteristic absorption at 385 nm suggested synthesis of AgNPs which was further confirmed by SEM, with a size in the range of 46.66 nm to 60.12 nm and a spherical shape, having an FCC structure, analyzed by XRD. FTIR analysis revealed the presence of phenol and secondary alcohol groups over the AgNPS. The elemental composition was further investigated by FESEM-EDX analysis which revealed the presence of silver in the synthesis nanoparticles. The synthesized silver nanoparticles exhibited antimicrobial activity against tested microorganisms with a zone of inhibition of 21 mm for Staphylococcus aureus, 17 mm for Pseudomonas aeruginosa, 18 mm for Salmonella enteric, and 18 mm for Escherichia coli. Overall, the results showed that the green silver nanoparticles could be safe, as they are capable of potential antimicrobial activity against S. aureus.

中文翻译：

---

花椒茎提取物制备银纳米粒子的绿色合成、表征及抗菌活性

在这项研究中，我们报告了使用花椒茎提取物的银纳米粒子 (AgNPs) 的绿色合成。在 385 nm 处的特征吸收表明合成了 AgNPs，通过 SEM 进一步证实，尺寸在 46.66 nm 至 60.12 nm 范围内，球形，具有 FCC 结构，通过 XRD 分析。FTIR 分析显示在 AgNPS 上存在苯酚和仲醇基团。通过 FESEM-EDX 分析进一步研究元素组成，该分析表明合成纳米粒子中存在银。合成的银纳米粒子对测试的微生物表现出抗菌活性，对金黄色葡萄球菌的抑菌圈为 21 mm，对铜绿假单胞菌的抑菌圈为17 mm,肠沙门氏菌为18 毫米，大肠杆菌为 18 毫米。总体而言，结果表明绿色银纳米粒子可能是安全的，因为它们能够对金黄色葡萄球菌具有潜在的抗菌活性。