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采用 叶提取物合成和表征银纳米粒子及其体外抗菌和抗氧化活性。

Synthesis and characterisation of silver nanoparticles using leaf extract of and their in vitro antimicrobial and antioxidant activities.

机构信息

Department of Chemistry, College of Science, Federal University of Petroleum Resources PMB 1221 Effurun, Delta State, Nigeria.

Department of Chemistry, Faculty of Agriculture, Science and Technology, School of Mathematics and Physical Sciences, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa.

出版信息

IET Nanobiotechnol. 2018 Sep;12(6):722-726. doi: 10.1049/iet-nbt.2017.0297.

Abstract

In this study, the conversion of silver ions into ∼30.74 nm sized silver nanoparticles (AgNPs) was achieved in 30 min at a reaction temperature of 80-90°C in aqueous leaf extract of . The synthesised AgNPs showed surface plasmon resonance in the range of 423-438 nm. Spherical and face-centred cubic nanoparticles were confirmed by transmission electron microscope (TEM) and X-ray diffraction (XRD) analysis, respectively. Fourier transform infra-red (FTIR) results indicated that the obtained nanoparticles were stabilised and capped through the carbonyl and carboxylate ion groups possibly from flavonoids, terpenoids, phenolics and esters content of the extracts. In addition, the AgNPs were assessed for their biological potentials against some microbes and, also, their free radical scavenging ability was established. The AgNPs exhibited interesting antimicrobial and antioxidant properties better than the aqueous extract of

摘要

在这项研究中,在 80-90°C 的反应温度下,通过. 的水提液在 30 分钟内将银离子转化为约 30.74nm 大小的银纳米粒子(AgNPs)。所合成的 AgNPs 在 423-438nm 范围内表现出表面等离子体共振。通过透射电子显微镜(TEM)和 X 射线衍射(XRD)分析分别证实了球形和面心立方纳米粒子的存在。傅立叶变换红外(FTIR)结果表明,获得的纳米粒子通过可能来自提取物中的类黄酮、萜类、酚类和酯类的羰基和羧酸盐离子稳定和封端。此外,评估了 AgNPs 对一些微生物的生物潜力,并且还确定了其自由基清除能力。AgNPs 表现出有趣的抗菌和抗氧化特性,优于

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