由拉什米·图拉西（Ocimum sanctum）叶提取物合成的银纳米粒子的绿色合成及光谱特性。
Green synthesis and spectral characterization of silver nanoparticles from Lakshmi tulasi (Ocimum sanctum) leaf extract.
机构信息
DST-PURSE Centre, Sri Venkateswara University, Tirupati 517 502, AP, India.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2013 Feb 15;103:156-9. doi: 10.1016/j.saa.2012.11.028. Epub 2012 Nov 28.
A simple method for the green synthesis of silver nanoparticles (AgNPs) using aqueous extract of Lakshmi tulasi (Ocimum sanctum) leaf as a reducing and stabilizing agent. AgNPs were rapidly synthesized using aqueous extract of tulasi leaf with AgNO(3) solution within 15 min. The green synthesized AgNPs were characterized using physic-chemical techniques viz., UV-Vis, X-ray diffraction (XRD), scanning electron microscope (SEM) coupled with X-ray energy dispersive spectroscopy (EDX) and Fourier transform-infrared spectroscopy (FT-IR). Characterization data reveals that the particles were crystalline in nature and triangle shaped with an average size of 42 nm. The zeta potential of AgNPs were found to be -55.0 mV. This large negative zeta potential value indicates repulsion among AgNPs and their dispersion stability.
一种使用印度楝叶（Ocimum sanctum）水提物作为还原剂和稳定剂来绿色合成银纳米粒子（AgNPs）的简单方法。AgNPs 可以在 15 分钟内快速地使用印度楝叶水提物与 AgNO3 溶液合成。使用物理化学技术，如紫外可见分光光度法、X 射线衍射（XRD）、扫描电子显微镜（SEM）结合 X 射线能谱（EDX）和傅里叶变换-红外光谱（FT-IR）对绿色合成的 AgNPs 进行了表征。表征数据表明，这些颗粒具有晶体性质，呈三角形，平均粒径为 42nm。AgNPs 的 ζ 电位为-55.0mV。这个大的负 ζ 电位值表明 AgNPs 之间存在排斥力，从而使它们具有分散稳定性。
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