نتایج جستجو برای: nano gold powder

تعداد نتایج: 177438  

2013
Gui Lu Han Hu Yuanyuan Duan Ying Sun

In this Letter, dynamic wetting of water nano-droplets containing non-surfactant gold nanoparticles on a gold substrate is examined via molecular dynamics simulations. The results show that the addition of non-surfactant nanoparticles hinders the nano-second droplet wetting process, attributed to the increases in both surface tension of the nanofluid and friction between nanofluid and substrate...

2011
Motonobu Goto Siti Machmudah Armando T. Quitain Mitsuru Sasaki

Fabrication of nano-structured materials has been developed by performing pulsed laser ablation of copper, gold, and silver plates in supercritical CO2. The metal nano-structured particles were successfully generated with allowing the selective generation of clusters. Laser ablation was performed with an excitation wavelength of 532 nm. On the basis of the experimental result, both surface of a...

2013
M. Khorasaninejad S. M. Raeis-Zadeh S. Jafarlou M. J. Wesolowski C. R. Daley J. B. Flannery J. Forrest S. Safavi-Naeini S. S. Saini

Highly enhanced Raman scattering of graphene on a plasmonic nano-structure platform is demonstrated. The plasmonic platform consists of silver nano-structures in a periodic array on top of a gold mirror. The gold mirror is used to move the hot spot to the top surface of the silver nano-structures, where the graphene is located. Two different nano-structures, ring and crescent, are studied. The ...

Journal: :international journal of nano dimension 0
a. hassanvand separation processes research group (sprg), department of engineering, university of kashan, kashan, iran. m. asghari separation processes research group (sprg), department of engineering, university of kashan, kashan, iran. h. halakoei energy research institute, university of kashan, kashan, iran. b. rajaei energy research institute, university of kashan, kashan, iran.

nano-zeolite coapo-5 as a member of afi family, was synthesized via a hydrothermal treatment, and structurally characterized using x-ray diffraction (xrd), scanning electron microscope (sem), and energy dispersive x-ray analysis (edax). the effects of crystallization temperature and time on the structure of these powder products were studied. xrd patterns of the synthesized powders revealed a h...

2012
Mansor Bin Ahmad Asma Fatehi Azmi Zakaria Shahrom Mahmud Sanaz A. Mohammadi

This study focuses on the fabrication and electrical characterization of a polymer composite based on nano-sized varistor powder. The polymer composite was fabricated by the melt-blending method. The developed nano-composite was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FeSEM), and energy-dispersive X-ray spect...

2015
G. R. Raghav N. Selvakumar K. Jeyasubramanian M. R. Thansekhar

The corrosion resistant coatings used conventionally are susceptible to degradation, leading to pitting corrosion. This report summarizes the corrosion resistant nature of thin films of Cu-TiO2 coated on mild steel, in different corrosion environments. Nano meter thick (100nm, 125nm, 150nm) composite coatings were coated on steel substrate by RF magnetron sputtering technique. The required targ...

Journal: :Ultramicroscopy 2013
Gregor Hlawacek Imtiaz Ahmad Mark A Smithers E Stefan Kooij

Nano-particles are of great interest in fundamental and applied research. However, their accurate visualization is often difficult and the interpretation of the obtained images can be complicated. We present a comparative scanning electron microscopy and helium ion microscopy study of cetyltrimethylammonium-bromide (CTAB) coated gold nano-rods. Using both methods we show how the gold core as we...

Bahman Alipour Parinaz Mehnati, Roya Salehi

Introduction: Early detection and treatment of breast cancer may be helping to save the lives of patients. Many new techniques have been urban to detect breast cancer. One of them is the use of nano-particles for accuracy and early diagnosis after photo transfer. In this study, rod gold nano particles was used according their ability to change light source transfer intensity. ...

Journal: :Biomedical microdevices 2014
Vaishnavi Srinivasaraghavan Jeannine Strobl Dong Wang James R Heflin Masoud Agah

The relative sensitivity of standard gold microelectrodes for electric cell-substrate impedance sensing was compared with that of gold microelectrodes coated with gold nanoparticles, carbon nanotubes, or electroplated gold to introduce nano-scale roughness on the surface of the electrodes. For biological solutions, the electroplated gold coated electrodes had significantly higher sensitivity to...

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