Characterization of silver nanoparticles by green synthesis method using Pedalium murex leaf extract and their antibacterial activity

K Anandalakshmi,V Ramasamy,J Venugobal

doi:10.1007/s13204-015-0449-z

K Anandalakshmi, V Ramasamy + Show 1 more

Open Access

https://doi.org/10.1007/s13204-015-0449-z

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Journal: Applied nanoscience	Publication Date: May 16, 2015
Citations: 727	License type: CC BY 4.0

Affiliation: Annamalai University

Abstract

In this paper, an aqueous extract of fresh leaves of Pedalium murex was used for the synthesis of silver (Ag) nanoparticles. Different biological methods are gaining recognition for the production of silver nanoparticles (AgNPs) due to their multiple applications. The use of plants in the green synthesis of nanoparticles emerges as a cost-effective and eco-friendly approach. Characterization of nanoparticles was done using different methods, which include; ultraviolet–visible spectroscopy (UV–Vis), Fourier transform infrared (FTIR), powder X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), energy dispersive X-ray analysis (EDAX), fluorescence emission spectroscopy, transmission electron microscope (TEM), dynamic light scattering (DLS), zeta potential and antibacterial activity. UV–visible spectrum of the aqueous medium containing silver nanoparticles showed absorption peak at around 430 nm. Fourier transform infrared spectra had shown that the biomolecule compounds were responsible for the reduction and capping material of silver nanoparticles. XRD study showed the particles to be crystalline in nature, with a face-centered cubic (fcc) structure. The size and stability were detected using DLS and zeta potential analysis. The antibacterial activity of AgNPs against generally found bacteria was assessed to find their potential use in silver-containing antibacterial product.

Highlights

In this paper, an aqueous extract of fresh leaves of Pedalium murex was used for the synthesis of silver (Ag) nanoparticles
The formation of the AgNPs during the reduction process is indicated by change in the color of the reaction solution from colorless to dark brown which can be visually observed (Fig. 2)
The AgNPs were characterized by ultraviolet–visible spectroscopy (UV–Vis), Fourier transform infrared (FTIR), X-ray diffraction (XRD), dynamic light scattering (DLS)-zeta potential, field emission scanning electron microscope (FESEM), EDAX and transmission electron microscope (TEM) analysis

Summary

Introduction

An aqueous extract of fresh leaves of Pedalium murex was used for the synthesis of silver (Ag) nanoparticles. Synthesis of metal nanoparticles is enormous due to their potential applicability in different areas such as electronics, chemistry, energy, and medicine development (Saxena et al 2012). Appl Nanosci (2016) 6:399–408 materials, chemically stable materials and good electrical conductors (Zargar et al 2014; Sharma et al 2009) They are ahead of time the interest of researchers for their novel method for synthesis of silver nanoparticles. Pedalium murex (P. murex) is a member of the sesame family, Pedaliaceae It is found in different parts of the world such as tropical Africa, Sri Lanka, India, Mexico and Pakistan (Rajashekar et al 2012). There has been no report on the green synthesis of nanoparticles using Pedalium murex leaves extract. The presently investigate the synthesis of silver nanoparticles from Pedalium murex extract and ascertain their characterization

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