Shankar Shiv, Leejae Sukanlaya, Jaiswal Lily, Voravuthikunchai Supayang Piyawan
Department of Microbiology, Faculty of Science and Natural Product Research Centre of Excellence, Prince of Songkla University, Hat Yai, 90112, Thailand; Department of Food Engineering and Bionanocomposite Research Institute, Mokpo National University, 61 Dorimri, Chungkyemyon, Muangun, 534-729, Jeonnam, Republic of Korea.
Department of Microbiology, Faculty of Science and Natural Product Research Centre of Excellence, Prince of Songkla University, Hat Yai, 90112, Thailand.
Microb Pathog. 2017 Jun;107:181-184. doi: 10.1016/j.micpath.2017.03.036. Epub 2017 Mar 30.
The present study was focused on the preparation of gold, silver, and gold-silver-alloy nanoparticles using Rhodomyrtus tomentosa acetone extract (RAE). The synthesized nanoparticles showed the surface plasmon resonance absorption peak corresponding to gold and silver nanoparticle. However, Au-Ag-Alloy nanoparticles showed the single peak between the peaks of AuNPs and AgNPs. TEM observation ascertained the shape and size of nanoparticles. FTIR results indicated the involvement of RAE for the synthesis and capping of nanoparticles. Study on antibacterial activity demonstrated the enhanced activity of RAE capped on silver and Au-Ag-Alloy nanoparticles against Escherichia coli.
本研究聚焦于使用桃金娘丙酮提取物（RAE）制备金、银和金银合金纳米颗粒。合成的纳米颗粒显示出对应于金和银纳米颗粒的表面等离子体共振吸收峰。然而，金-银合金纳米颗粒在金纳米颗粒和银纳米颗粒的峰之间显示出单一峰。透射电子显微镜观察确定了纳米颗粒的形状和大小。傅里叶变换红外光谱结果表明RAE参与了纳米颗粒的合成和包覆。抗菌活性研究表明，包覆在银和金-银合金纳米颗粒上的RAE对大肠杆菌的活性增强。
