نتایج جستجو برای: extract nanoparticles

تعداد نتایج: 280956  

The novel approach has been carried for the green synthesis of silver nanoparticles using leaf extract of Cinnamomum tamala and silver nitrate solution. The optimal condition for synthesizing Ag-NPs was obtained by varying the leaf extract concentration, temperature, AgNO3 concentration, effect of ratio of leaf extract to AgNO3 solution,pH and reaction time. The f...

2017
Renata Dobrucka

Nowadays green synthesis of metal nanoparticles is a developing area of research. In this study, titanium dioxide nanoparticles were biosynthesized using an aqueous solution of Echinacea purpurea herba extract as a bioreductant. This is novel and interesting method for synthesis of TiO2 nanoparticles. The prepared titanium dioxide nanoparticles were characterized using ultraviolet-visible spect...

2011
M. Linga Rao

Biologically synthesized nanoparticles have been widely using in the field of medicine. Biogenesis of nanoparticles have proven to be better methods due to slower kinetics and they offer better manipulation and control over crystal growth and their stabilization. The present study revealed that the phytosynthesis of silver nanoparticles from 1 mM AgNO3 solution through the leaf extract of Svens...

2014
SAMUEL AKASH ARUMUGAM P

Objective: The present study is to synthesize nanoparticles using the leaf extracts of Mimosa pudica and screen for its α-amylase inhibiting potential as well as antibacterial properties. Methods: Silver nanoparticles were synthesized using extract of Mimosa pudica leaves under various conditions such as sunlight, UV and room temperature. The synthesized nanoparticles were further characterized...

ObjectiveThe present work represents the green synthesis of silver nanoparticles using Withania coagulans extract and its antibacterial property. The synergy, additive, bacteriostatic and bactericidal effect of silver nanoparticles was determined against Enterococcus faecalis, Staphylococcus aureus, Escherichia coli, Proteus vulgaris, Salmonella typhi, and Vibrio cholerae. Methods <...

A. Baghizadeh G. A. Mansoori R. Mohammadinejad Sh. Pourseyedi Sh. Ranjbar

Green synthesis of nanoparticles, as fundamental building blocks of nanotechnology, has recently attracted considerable attention. Silver nanoparticles have unique physiochemical, biological and environmental properties which make them useful in a wide range of applications. In the present paper we report our research results on biosynthesis of silver nanoparticles from silver precursor usin...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده شیمی 1392

in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...

2011
Satyavani K Gurudeeban S Ramanathan T Balasubramanian T

BACKGROUND An increasingly common application is the use of silver nanoparticles for antimicrobial coatings, wound dressings, and biomedical devices. In this present investigation, we report, biomedical potential of silver nanopaticles synthesized from calli extract of Citrullus colocynthis on Human epidermoid larynx carcinoma (HEp -2) cell line. METHODS The callus extract react with silver n...

Introduction Green biosynthesis of the metallic nanoparticles is considered as one of the effective method for cancer treatment with minimum side effects. The objective of this study was the evaluation of cytotoxicity of zinc oxide (ZnO) nanoparticles synthesized with Ceratonia siliqua extract on the breast cancer cells and assessment of anti-angiogenesis properties of these nanoparticles in t...

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