Green Synthesis of Silver Nanoparticles byMulberry LeavesExtract

Abstract

Utilizing the reduced property of mulberry leaves extract and silver nit rate, silver nanoparticles (AgNPs) were synthesized at room temperature. Silver nanoparticles were characterized using UV-v isible absorption spectroscopy, scanning electron microscopy (SEM ) andX-ray diffract ion (XRD).Further, silver nanoparticles showed effective antibacterial activity toward StaphylococcusaureusandShigella sp.. Keywords SilverNanoparticles,Mulberry Leaves Ext ract, Characterizat ion, Antibacterial Activ ity 1.IntroductionThe growing need of environ mental friendly nanoparticles, researchers are using green methods for the synthesis of various metal nanoparticles. But nowadays, plant extract has been used as reducing and capping agent for the synthesis of nanoparticles which could be advantageous over photochemical reduction, heat evaporation, electrochemical reduction, and chemical reduction methods. Several biological systems including bacteria, fungi, and yeast have been used in synthesis of nanoparticles. Silver nanoparticles have attracted intensive research interest because of their important applicat ions as antimicrobial, catalytic, text ile fabrics and plastics to eliminate microorganisms. Because of such a wide range of applications, numerous methods concerning the fabrication of silver nanoparticles, as well as various silver-based compounds containing ionic silver (Ag+) or metallic silver (Ag0) have been developed. The synthetic methods used for the preparation of silver nanoparticles, some to xic chemical used as a reducing agent such as NaBH4, citrate, or ascorbate is most common ly used. In recent years, p lant-leaf ext racts synthesis of nanoparticles is gaining importance due to its simplicity and eco-friendliness. Although green synthesis of silver nanoparticles by plant leaves extract such as mangosteen [ This study was designed with a simp le, cost-effective and environmentally synthesis method of silver nanoparticles (AgNPs) at amb ient conditions using mu lberry leavesextract as a reducing and stabilizing agent. The AgNPs synthesized in this method has the efficient antimicrobial activity against pathogenic bacteria. ExperimentalSilver nit rate (AgNO 3 ) was obtained from A ldrich Chemicals. A ll glassware have been washed with sterile distilled water and dried in an oven before use. Preparati on Mul berry Le aves Extract

Green synthesis and characterization of silver nanoparticles using Cydonia oblong seed extract

“…In chemical reduction method for the synthesis of Ag-NPs, organic and inorganic reducing agents such as polyvinyl pyrrolidone, NaBH 4 , N 2 H 4 and sodium citrate, in controlling the growth of NPs and prevention from aggregation, are used. Chemicals used in this method pose a risk to the environment and biotic life as they are toxic and harmful (Awwad and Salem 2012).…”

Green synthesis and characterization of silver nanoparticles using fructose

“…Generally, nanoparticles are prepared by a variety of chemical and physical methods which are quite expensive and potentially hazardous to the environment, resulting in various biological risks. Biosynthetic routes can actually provide nanoparticles of a better defined size and morphology than some of the physicochemical methods [5]. In green synthesis of nanoparticles, three important rules of green chemistry should be considered: i) choosing an appropriate green solvents, ii) choosing an eco-friendly benign reducing agent, and iii) choosing a non-toxic stabilizer [6].…”

Optimization preparation of the biosynthesis of silver nanoparticles using watermelon and study of itsantibacterial activity

“…The IR analysis of the samples showed the involvement of proteins and amino groups in the reduction and stabilisation of the silver nanoparticles. In 2012, Salem and Awwad [15] fabricated silver nanoparticles by using mulberry leaf extract and found effective antibacterial activity to Staphylococcus aureus and Shigella sp. Ponarulselvam et al [16] developed a novel method for the fabrication of silver nanoparticles using leaf extract of Catharanthus roseus (C. roseus), and they confirmed activity against the malaria parasite Plasmodium falciparum (P. falciparum).…”