نتایج جستجو برای: nano silver powder

تعداد نتایج: 139526  

2014
Simin Mohseni Mahdi Aghayan Adel Ghorani-Azam Mohammad Behdani Ahmad Asoodeh

So far, the antibacterial activity of some organic and inorganic compounds has been studied. Barium zirconate titanate [Ba(ZrxTi₁-x)O₃] (x = 0.05) nanoparticle is an example of inorganic materials. In vitro studies have provided evidence for the antibacterial activity of this nanoparticle. In the current study, the nano-powder was synthesized by sol-gel method. X-ray diffraction showed that the...

2012
Kamyar Shameli Mansor Bin Ahmad Ali Zamanian Parvanh Sangpour Parvaneh Shabanzadeh Yadollah Abdollahi Mohsen Zargar

Green synthesis of noble metal nanoparticles is a vastly developing area of research. Metallic nanoparticles have received great attention from chemists, physicists, biologists, and engineers who wish to use them for the development of a new-generation of nanodevices. In this study, silver nanoparticles were biosynthesized from aqueous silver nitrate through a simple and eco-friendly route usin...

Journal: :dental research journal 0
neda bahremandi -tolou mohammadhossein fathi ahmad monshi vajihesadat mortazavi farzaneh shirani

background: many attempts have been performed and continued for improvement of dental amalgam properties during last decades. the aim of present research was fabrication and characterization of amalgam/titania nano composite and evaluation of its corrosion behavior. materials and methods: in this experimental research, nano particles of titania were added to initial amalgam alloy powder and the...

Journal: :Hacettepe Journal of Biology and Chemistry 2022

The silver (Ag) is a well-known material with interesting properties (i.e. catalytic activity, antimicrobial, etc.). nano-sized particles of propose enhanced due to having relatively higher surface areas. green synthesis promising way preparation/production being more environmentally friendly by utilization less harmful materials. In this work, the plant extracts (Cynara & Walnut shell powd...

Journal: :Journal of microbiology and biotechnology 2008
Keuk-Jun Kim Woo Sang Sung Seok-Ki Moon Jong-Soo Choi Jong Guk Kim Dong Gun Lee

Spherical silver nanoparticles (nano-Ag) were synthesized and their antifungal effects on fungal pathogens of the skin were investigated. Nano-Ag showed potent activity against clinical isolates and ATCC strains of Trichophyton mentagrophytes and Candida species (IC80, 1-7 microg/ml). The activity of nano-Ag was comparable to that of amphotericin B, but superior to that of fluconazole (amphoter...

2010
Daisuke Maruoka Makoto Nanko

The oxidation kinetics of 5 vol% nano-Ni dispersed Al2O3 with Si-doping (nano-Ni/Al2O3-Si) was studied in the present paper. The starting powder mixture was prepared by drying aqueous slurry consisting of alumina with nickel nitrate and Si (OCH3)4. The powder mixture was reduced at 600 C for 12 h in a stream of Ar-1%H2 gas mixture. Nano-Ni/Al2O3-Si was densified by pulsed electric current sinte...

فراست, مهشید, گلزان, سید مقصود, حسن‌زاده, علی,

In this study, we propose a simple approach to prepare silver nanoparticles. The silver nanoparticles were synthesized by chemical reduction of AgNO3 in the presence of tetrabutyl titanate (C16H36O4Ti; TNBT) and metallic tin powder as reducing agent in water at room temperature. The structure and average grain size of prepared particles were characterized by transmission electron microscope (TE...

Disturbance in water relations is the major causes of vase life reduction and senescence in cut flowers This problem is mainly due to microorganism proliferation in the vase solution which leads to vascular occlusion and reduction in solution uptake by cut flowers. Therefore a comprehensive study was conducted to evaluate the biocidal effect of nano silver particles (NSP) and compare it with so...

Journal: :avicenna journal of medical biotechnology 0

recently there has been fabulous excitement in the nano-biotechnological area for the study of nanoparticles synthesis using some natural biological system, which has led the growth advanced nanomaterials. this intention made us to assess the biologically synthesized silver nanoparticles from the leaf of suaeda monoica (s.monoica) using 1 mm silver nitrate. the leaf extract of s.monoica incubat...

2009
Yoshimi Watanabe Yoshifumi Inaguma Hisashi Sato Eri Miura-Fujiwara

One of the fabrication methods for functionally graded materials (FGMs) is a centrifugal solid-particle method, which is an application of the centrifugal casting technique. However, it is the difficult to fabricate FGMs containing nano-particles by the centrifugal solid-particle method. Recently, we proposed a novel fabrication method, which we have named the centrifugal mixed-powder method, b...

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