Centro de Nanociencia y Nanotecnologia, Universidad de las Fuerzas Armadas - ESPE, Av. Gral. Rumiñahui s/n, Sangolqui, P.O. Box 171-5-231B, Ecuador.
Saudi J Biol Sci. 2014 Dec;21(6):605-9. doi: 10.1016/j.sjbs.2014.07.004. Epub 2014 Jul 24.
Silver nanoparticles (AgNPs) are fabricated using Sacha inchi (SI) or (Plukenetia volubilis L.) leaf extract as non-toxic reducing agent with particle size ranging from 4 to 25 nm. Optical, structural and morphological properties of the synthesized nanoparticles have been characterized by using Visual, UV-Vis spectrophotometer, transmission electron microscopy (TEM) and dynamic light scattering (DLS) analysis. Selected area electron diffraction (SAED) confirmed the formation of metallic Ag. Infrared spectrum measurement was carried out to hypothesize the possible phytochemicals responsible for stabilization and capping of the AgNPs. It shows the significant antioxidant efficacy in comparison with SI leaf extracts against 1,1-diphenyl-2-picrylhydrazyl. From the results obtained it is suggested that green AgNPs could be used effectively in future engineering and medical concerns.
采用无毒的 Sacha inchi（SI）或（Plukenetia volubilis L.）叶提取物作为还原剂制备了银纳米颗粒（AgNPs），其粒径范围为 4 至 25nm。通过使用可见分光光度计、紫外-可见分光光度计、透射电子显微镜（TEM）和动态光散射（DLS）分析对合成纳米粒子的光学、结构和形态特性进行了表征。选区电子衍射（SAED）证实了金属 Ag 的形成。进行了红外光谱测量，以假设可能的植物化学物质负责 AgNPs 的稳定和覆盖。与 SI 叶提取物相比，它显示出显著的抗氧化功效，对 1,1-二苯基-2-苦基肼具有较高的抑制作用。从获得的结果表明，绿色 AgNPs 可以在未来的工程和医疗领域中得到有效利用。
