COMPARATIVE STUDIES ON BIOSYNTHESIS OF SILVER NANOPARTICLES BY AZADIRACHTA INDICA, MENTHA ARVENSIS LEAF EXTRACT ITS CHARACTERIZATION AND APPLICATION FOR ANTIBACTERIAL AND ANTIMICROBIAL FINISH ON FABRIC

Abstract

Silver nanoparticles have unique optical, electrical, and thermal properties and are being incorporated into
products that range from photovoltaics to biological and chemical sensors. Examples include conductive inks,
pastes and fillers which utilize silver nanoparticles for their high electrical conductivity, stability, and low
sintering temperatures. An increasingly common application is the use of silver nanoparticles for antimicrobial
coatings, and many textiles, keyboards, wound dressings, and biomedical devices now contain silver
nanoparticles that continuously release a low level of silver ions to provide protection against bacteria. The
comparative studies includes the characterization of silver nanoparticles by uv-visible spectroscopy, FTIR
spectra. Identification of functional groups with IR spectroscopy. antibacterial, antimicrobial activity of
azadirachta indica plant extract dyed cotton and silk fabrics. antibacterial, antimicrobial activity of mentha
arvensis plant extract dyed cotton and silk fabrics , antibacterial, antimicrobial activity of silver nano cotton and
silk fabrics, antibacterial, antimicrobial activity of silver nano cotton and silk fabrics. Silver nanoparticles
synthesized by the green chemistry approach reported in this study using Azadirachtaindica and Menthaarvensis
leaves extract shows potent applications . It has been demonstrated that use of a natural, renewable and low-cost
biological reducing agent, such as Azadirachtaindica and Menthaarvensis leaves can produce metal
nanostructures in aqueous solution at ambient temperature, avoiding the presence of hazardous and toxic
solvents. The antibacterial, antimicrobial activity of SNP derived from Azadirachtaindica shows enhanced
activity when compared to Menthaarvensis. By incorporating nano scale silver into textiles the manufactures can
make materials that use a small amount of silver to kill the microbes present on the surface of the clothing
material it helps to prevent spoilage from the microbial growth.