Green synthesis of silver nanoparticles using carob leaf extract and its antibacterial activity

被引：337

作者：

Awwad, Akl M. ^{[1
]}

Salem, Nida M. ^{[2
]}

Abdeen, Amany O. ^{[1
]}

机构：

[1] El Hassan Sci City, Royal Sci Soc, Amman 11941, Jordan

[2] Jordan Univ, Fac Agr, Plant Protect Dept, Amman 11942, Jordan

来源：

INTERNATIONAL JOURNAL OF INDUSTRIAL CHEMISTRY | 2013年 / 4卷 / 01期

关键词：

Biosynthesis; Silver nanoparticles; Carob leaf extract; Characterization; Antibacterial activity;

D O I：

10.1186/2228-5547-4-29

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Background: This paper describes a rapid and eco-friendly method for green synthesis of silver nanoparticles from aqueous solution of silver nitrate using carob leaf extract (Ceratonia siliqua) in a single-pot process. Results: Formation of stable silver nanoparticles at different concentrations of AgNO3 gave mostly spherical particles with a diameter ranging from 5 to 40 nm. It was observed that the use of carob leaf extract makes a fast and convenient method for the synthesis of silver nanoparticles and can reduce silver ions into silver nanoparticles within 2 min of reaction time without using any severe conditions. Green synthesis of silver nanoparticles (AgNPs) was characterized by UV-visible (UV-vis) spectroscopy, scanning electron microscopy, atomic absorption spectroscopy, Fourier transform infrared spectroscopy, and X-ray diffraction (XRD). The UV-vis spectra gave surface plasmon resonance for synthesized silver nanoparticles at 420 nm. The XRD analysis showed that the AgNPs are crystalline in nature and have face-centered cubic geometry. Conclusion: Further, the AgNPs showed an effective antibacterial activity toward Escherichia coli pathogen.

引用

页数：6

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