silver nanoparticles (agnps) are amongst the most investigated materials in nanotechnology in view of their unique physio-chemical features and applications in restorative science. their progressive usages in different fields of science besides some predominant restrictions with conventional methods for their synthesis have demanded analysts to discover green courses for their creation. biologi...

in the present study, a simple, fast and eco-friendly biosynthesis of silver nanoparticles (agnps) using   mentha langifolia leaf extract as the reducing agent was investigated. nanoparticles forming were indicated by the color changes in solution and were confirmed by uv-vis spectrum, ft-ir analysis and scanning electron microscopic (sem) micrograph. the average particle size of produced agnps...

OBJECTIVE To develop a simple rapid procedure for bioreduction of silver nanoparticles (AgNPs) using aqueous leaves extracts of Catharanthus roseus (C. roseus). METHODS Characterization were determined by using UV-Vis spectrophotometry, scanning electron microscopy (SEM), energy dispersive X-ray and X-ray diffraction. RESULTS SEM showed the formation of silver nanoparticles with an average ...

Silver ions (Ag+) and its compounds are highly toxic to microorganisms, exhibiting strong biocidal effects on many species of bacteria but have a low toxicity toward animal cells. In the present study, silver nanoparticles (SNPs) were biosynthesized using aqueous extract of Chlorella vulgaris as reducing agent and size of SNPs synthesized ranged between 15 and 47 nm. SNPs were characterized by ...

The goal of the present study was to investigate the toxicity of biologically prepared small size of silver nanoparticles in human lung epithelial adenocarcinoma cells A549. Herein, we describe a facile method for the synthesis of silver nanoparticles by treating the supernatant from a culture of Escherichia coli with silver nitrate. The formation of silver nanoparticles was characterized using...

Nanocomposites are formed by joining two or more materials, at least one of which must have a size in the nanometer range (1 nm -100 nm). In this study, cobalt ferrite-silver nanocomposite was prepared with green synthesis approach. The aim to combine magnetic properties cobalt-ferrite nanoparticles both antimicrobial and conductivity silver nanoparticles. Thus, material can be used for biologi...

Silver nanoparticles display unique physical and biological properties which have attracted intensive research interest because of their important medical applications. In this study silver nanoparticles (Ab.Ag-NPs) were synthesized for biomedical applications using a completely green biosynthetic method using Achillea biebersteinii flowers extract. The structure and properties of Ab.Ag-NPs wer...

in this research kelussia odoratissima mozaff. leaf extract was used for the green synthesis of silver nanoparticles (agnps). at first we compared antioxidant activity of different extracts of k. odoratissima. then solution containing silver nitrate was treated with the extract which showed high antioxidant activity. synthesized agnps were evaluated by analyzing the excitation of surface plasmo...

In this project, total phenolic and flavonoid contents of the aqueous extract of Laurus nobilis L. leaves were evaluated by colorimetric methods. These natural products which are found in plants extracts, can be considered as reducing and stabilizing agents in the synthesis of metal nanoparticles. Regarding to high amounts of these compounds in the extract, silver nanoparticles were synthesized...

a facile and green approach has been developed to synthesize silver nanoparticle (ag-nps). this was carried out by a biosynthetic route using justicia adhatoda root extract as reducing and stabilizing agent. the structure, composition, average particle size (~25 nm) and surface morphology of ag-nps were characterized by the x-ray diffraction, transmission electron microscope and atomic force mi...