نتایج جستجو برای: ag and m1

تعداد نتایج: 16836449  

Green chemistry - also called sustainable chemistry - as the cost-effective and environmentally friendly techniques have been gaining more attention recent years. Here, we introduced a fast, non-toxic and sustainable method to synthesize Ag nanoparticles. Various parameters are involved in the bio-synthesis of Ag nanoparticles/multi-walled carbon nanotubes (Ag/MWf-CNT) composites, including...

Journal: :Angewandte Chemie 2001
Wojciech Grochala Roald Hoffmann

With the aim of gauging their potential as conducting or superconducting materials, we examine the crystal structures and magnetic properties of the roughly one hundred binary, ternary, and quaternary Ag(II) and Ag(III) fluorides in the solid state reported up to date. The Ag(II) cation appears in these species usually in a distorted octahedral environment, either in an [AgF](+) infinite chain ...

Journal: :Nature Reviews Microbiology 2016

Bahar Khodadadi Mohammad Sabeti Omulbanin Norozi

For the first time the extract of the plant of Tilia platyphyllos was used to green synthesis of Ag nanoparticles (NPs) supported on Ziziphus jujuba kernel as an environmentally benign support. Ag NPs/ Ziziphus  jujuba  kernelas  an  effective  catalyst  was  prepared  through reduction  of Ag+ions using Tilia  platyphyllos extractas  the  reducing  and capping agent  and Ag  NPs immobilization...

Journal: :International journal of food microbiology 2007
María A Passone Silvia Resnik Miriam G Etcheverry

Analytical grade (AG) and industrial grade (IG) of three-food grade antioxidants butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT) and propyl paraben (PP) were analyzed to prove their fungitoxic effect on Aspergillus section Flavi strains. The effect of interactions among 10 antioxidant treatments at water activity levels (0.982, 0.955, 0.937 a(W)) for 11 and 35 days of incubation ...

Journal: :avicenna journal of medical biotechnology 0

studies on biomedical applications of nanoparticles are growing with a rapid pace. in medicine, nanoparticles may be the solution for multi-drug-resistance which is still a major drawback in chemotherapy of cancer. in the present study, we investigated the potential cytotoxic effect of silver nanoparticles (ag nps) and silver ions (ag+) in both parent and tamoxifen-resistant t47d cells in prese...

Journal: :avicenna journal of medical biotechnology 0

the synthesis, characterization and application of biologically synthesized nanomaterials are an important aspect in nanotechnology. the present study deals with the synthesis of silver nanoparticles (ag-nps) using the aqueous extract of red seaweed gelidiella acerosa as the reducing agent to study the antifungal activity. the formation of ag-nps was confirmed by uv-visible spectroscopy, x-ray ...

Journal: :physical chemistry research 0
salimeh kimiagar islamic azad university- central tehran branch - tehran - iran

tio2 thin films and ag/tio2 nanoparticles were prepared by cvd and plasma bombardment method. xrd results showed the presence of ag nanoparticles in tio2 matrix. sem image confirmed formation of ag nanoparticles. xps analysis was utilized to study the chemical state of the ag/tio2 nanostructure. statistical surface analysis revealed that since there is a linear relation between logarithmic diag...

ژورنال: طلوع بهداشت یزد 2016
احرام پوش, محمد حسن, جمشیدی, حمیدرضا, حاجی محمدی, بهادر, دهقان منشادی, مهدی, دهقان, حمیدرضا, عزتی, پریا,

Introduction: Aflatoxins are of the highly toxic metabolites, produced by different species of aspergillums causing Immunosuppressive, mutagenic, teratogenic, and carcinogenic effects. The major aim of this study is to evaluate the concentration of aflatoxin M1 in breast milk in Yazd in summer and winter 2013. Methods: This is a cross-sectional study. During summer and winter 2013, samples f...

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