Biosynthesis of silver nanoparticles using murraya koenigii (curry leaf): An investigation on the effect of broth concentration in reduction mechanism and particle size

Abstract

Biological synthesis of silver nanoparticles using Murraya koenigii leaf extract was investigated and the effect of broth concentration in reduction mechanism and particle size is reported. The rapid reduction of silver (Ag + ) ions was monitored using UV-visible spectrophotometry and showed formation of silver nanoparticles within 15 minutes. Transmission electron microscopy (TEM) and atomic force microscopy (AFM) analysis showed that the synthesized silver nanoparticle are varied from 10-25 nm and have the spherical shape. Further the XRD analysis confirms the nanocrystalline phase of silver with FCC crystal structure. From this study, it was found that the increasing broth concentration increases the rate of reduction and decreases the particle size.

Biogenic Synthesis of Nanoparticles and Potential Applications: An Eco- Friendly Approach

“…Nanoparticle synthesis furthermore carried out using Szyygium aromaticum bud extract, Murraya koenigii leaf extract. This synthesis is owing to the natural reducing agent eugenol and could be carbazoles present in the extracts correspondingly [26,27]. Biosynthesis of gold nanoparticles utilizing the leaf extract of Mirabilis jalapa was explicated [28].…”

A Simple Biosynthesis of Silver Nanoparticles from Syzygium cumini Stem Bark Aqueous Extract and their Spectrochemical and Antimicrobial Studies

“…Green synthesis is a chemistry which is helps in the design, development and implementation of chemical products; also it facilitates in reduction or elimination the substances that are hazardous to human health and the environment . Recently, there is a renewed interest in using a green chemistry approach to synthesize metal nanoparticles (Geethalakshmi et al, 2010;Christensen et al, 2011;Arokiyaraj et al, 2014;Gandhi et al, 2014). Sastry and coworkers (Ahmad et al, 2003;Shankar et al, 2004) employed an in silico approach to investigate the synthesis of stable Ag, Au and Ag-Au bimetallic nanoparticles using Azadirachta indica leaf broth and suggested that the flavanone and terpenoids are prime in responsibility for the stabilization of nanoparticles.…”

<i>Conocarpus erectus</i> Leaf Extract for Green Synthesis of Silver Nanoparticles

“…Like silver nanoparticles are traditionally synthesized by chemical methods using ethylene glycol, pyridine and sodium borohydride. All chemicals used in this route are toxic and highly reactive costing a risk to the environment and humans, or expensive to be feasible procedures in the industrial field [8]. As a comparison, the chemical methods involve hazardous chemicals, low conversion and production, consuming high energy and difficult to purifications of the products and need waste treatment [9][10].…”

“…Silver nanoparticle produced by biological synthesis using natural products depending on phytoconstituents like Amaranthus dubius, Amaranthus polygonoides, Alternanthera sessilis and Portulaca oleracea [19], Murraya koenigii [8], Moringa oleifera leaf extract [20], Azhadirachta indica [1], Pisonia grandis [19], Ananas comosus [21], where plant extracts act as potential reducing agents for the green synthesis and also plant extracts act as stabilizing agents [22]. Conocarpus erectus L. (family Combretaceae) is an evergreen tree and it is a mangrove species also called buttonwood growing in coastal areas in tropical and subtropical regions of the world.…”