نتایج جستجو برای: ag extract nanoparticles
تعداد نتایج: 319701 فیلتر نتایج به سال:
nano world daily. in this paper the lens culinaris seed extract was assessed for thegreen synthesis of silvernanoparticlesat temperature of 25◦c. the nanoparticles were characterized using inductively coupledplasma spectrometry (icp), x-ray diffraction (xrd) and transmission electron microscopy (tem). thenthe antimicrobial activities of these nanoparticles were investigated. p. aeruginosa and s...
During this study, we report the green synthesis of silver nanoparticles (Ag NPs) using Euphorbia helioscopia Linn leaf extract for the synthesis of propargylamines. Also, the structural and optical properties are studied. The synthesized nanoparticles are characterized by TEM, XRD, FT-IR and UV-visible techniques. UV-visible studies show an absorption band at 440 nm due to surface plasmon reso...
Objective(s): Silver nanoparticles (Ag NPs) are not only specific physical and chemical properties but also are considered for their antibacterial activity and ecofriendly.Materials and Methods:In this study a simple, cost effective biologically method for Ag+reducing to Ag NPs using Echinops extractas a stabilizer, and reducing agent.Ag NPs were analyzed using UV-Vis spectrometry,TEM, XRD and ...
biogenic reduction of silver ion to base metal is quite rapid, readily conducted at room temperature and pressure, and easily scaled up. synthesis mediated by plant extracts is environmentally benign. the objective of this study was to synthesis of silver nanoparticles (ag-nps) using leaves aqueous extract of nasturtium officinale r. br. (no) and its antibacterial activity. x-ray diffraction (x...
Salinity stress reduces plant metabolic activity, which reduces plant growth in saline environments. this study aimed to investigate the effect of salinity stress as one of the limiting factors of plant growth and the effect of nanoparticles on stress conditions as one of the auxiliary factors in plant control against stressful conditions by studying physiological factors such as soluble sugars...
BACKGROUND Development of an environmentally benign process for the synthesis of silver nanomaterials is an important aspect of current nanotechnology research. Among the 600 species of the genus Dioscorea, Dioscorea bulbifera has profound therapeutic applications due to its unique phytochemistry. In this paper, we report on the rapid synthesis of silver nanoparticles by reduction of aqueous Ag...
In this work the Origanum vulgare leaf extract was used to green synthesis of Ag nanoparticles (NPs) supported on Hazelnut shell as an environmentally benign support. The Ag NPs/Hazelnut shell as an effective catalyst was prepared through reduction of Ag+ ions using Origanum vulgare leaf extract as the reducing and capping agent and Ag NPs immobilization on Hazelnut shell surface in ...
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...
Background Biosynthesis of noble metallic nanoparticles (NPs) has attracted significant interest due to their environmental friendly and biocompatible properties. Methods In this study, we investigated syntheses of Au, Ag and Au-Ag bimetallic NPs using protein extracts of Deinococcus radiodurans, which demonstrated powerful metal-reducing ability. The obtained NPs were characterized and analy...
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