نتایج جستجو برای: gold nano particles

تعداد نتایج: 279908  

Journal: :international journal of nano dimension 0
m. kargar razi department of chemistry, north tehran branch-islamic azad university, tehran, iran. r. sarraf maamoury department of chemistry, tarbiat modares university, tehran, iran. s. banihashemi department of chemistry, north tehran branch-islamic azad university, tehran, iran.

in this study, selenium was recovered from an industrial dust. after the purification process, the researchers were able to prepare selenium micro powder. the objective of this study was to prepare selenium nano particles by water solution phase method from the micro powders. the results showed that selenium micronized powder and nano particles had high purity. the obtained nanoparticles were t...

Journal: :international journal of nano dimension 0
m. kamal civil eng. dept., faculty of engineering, menoufia university, shebeen el-koom, menoufia, egypt. m. a. safan civil eng. dept., faculty of engineering, menoufia university, shebeen el-koom, menoufia, egypt. m. eltabey basic eng. science department, faculty of engineering, menoufia university, egypt. el. s. zaki building materials department, housing & building research center, cairo, egypt. kh. abu el-hassan ph.d. candidate, civil eng. dept., faculty of engineering, delta university, mansura, egypt.

this study is concerned with the synthesizing of cu-zn nano-ferrite particles in the laboratory applying simple techniques. the morphology of the synthesized nano-particles was analyzed using transmission electron microscopy (tem), and the minerals were identified using x-ray diffraction (xrd). the nano material was used to replace 1- 4 percent by weight of portland cement in cement pastes and ...

2012
Arun Chauhan Swaleha Zubair Asif Sherwani Mohammad Owais

AIM Biomimetic nano-assembly formation offers a convenient and bio friendly approach to fabricate complex structures from simple components with sub-nanometer precision. Recently, biomimetic (employing microorganism/plants) synthesis of metal and inorganic materials nano-particles has emerged as a simple and viable strategy. In the present study, we have extended biological synthesis of nano-pa...

Journal: :Environmental pollution 2007
Chih-Chung Lin Shui-Jen Chen Kuo-Lin Huang Wen-Jhy Lee Wen-Yinn Lin Chiu-Jung Liao Hso-Chi Chaung Chuen-Huey Chiu

This study investigated water-soluble ions in the sized particles (particularly nano (PM(0.01-0.056))/ultrafine (PM(0.01-0.1))) collected using MOUDI and Nano-MOUDI samplers near a busy road site and at a rural site. The analytical results demonstrate that nano and coarse particles exhibited the highest (16.3%) and lowest (8.37%) nitrate mass ratios, respectively. The mass ratio of NO(3)(-) was...

Arash Roozbahani Sanaz Pour Ali

The presented study aimed at investigating the effect of foliar application of amino acids and nano particles and chelated iron on photosynthetic pigments and yield of potato. To this end a factorial experiment was carried out in the form of randomized complete block design with three replications in 2013, in the Research Field of Natural Resources Institute in Damavand, Iran. The first factor ...

Journal: Current Medical Mycology 2016

Background and Purpose: In people wearing dentures, the growth of various Candida species under the prosthesis leads to the formation of biofilm, which can play the role of a reservoir for Candida and other kinds of microbes. Since nano-chitosan particles can cause lasting antimicrobial activity, a more recent approach that utilizes acrylic resins with nano-chitosan particles is proposed. Th...

In this study, nano-ZnO particles were deposited on mild steel sheets from an acidic zinc bath. These particles were synthesized by using an auto combustion technique. The effect of concentration of nano- ZnO particles on the corrosion behavior of depositions was investigated. The results of salt spray tests and electrochemical measurements showed that corrosion resistance is improved by additi...

Journal: :iranian journal of materials science and engineering 0
s. ghasemi-kahrizsangi ahvaz h. gheisari-dehsheikh ahvaz m. boroujerdnia ahvaz

in this study the effect of nano meter size zro2 particles on the microstructure, densification and hydration resistance of magnesite –dolomite refractories was investigated. 0, 2, 4, 6 and 8 wt. % zro2 particles that were added to magnesite –dolomite refractories containing 35 wt. % cao. the hydration resistance was measured by change in the weight of specimens after 72 h at 25℃ and 95% relati...

Journal: :iranian journal of biotechnology 2008
shahrokh gharanjik ahmad moieni amir mousavi houshang alizadeh

haploid microspore-derived embryos (mdes) of wheat were obtained by in vitro androgenesis. these  embryos were employed to evaluate the transient expression of gus gene (uida) following particle bombardment. using the bio-rad pds-1000/he system, the physical parameters including rupture disk pressure (900, 1100 and 1350 psi); microprojectile travel distance (6 and 9 cm); gold particles size (0....

2010
Ana María Zaske Delia Danila Michael C. Queen Eva Golunski Jodie L. Conyers

Biological processes such as endocytosis/exocytosis, interactions between cells and the dynamic reorganization of the cytosqueleton are between the topics extensively studied using the Atomic Force Microscopy (AFM) technique. The topographical structure of the cell membrane itself is complex, rich in natural corrugations and ridges. These surface characteristics obscure the identification of ex...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید