gold – Page 2 – TechConnect Briefs

Nanotribology and Lubrication at Nanoscale: Molecular Dynamics Simulation Studies

Jabbarzadeh A., The University of Sydney, AU

Increasing technological advances to make devices and processes at the nanoscale, have made it necessary to effectively minimize the friction and adhesion of moving mechanical assemblies, such as those in micro- or nano-electromechanical (MEMS/NEMS) devices. [...]

Effects of Ag and Pd Addition on Mechanical Property and Ion-migration Tolerance in Low Temperature Sintering Bonding Using Ag2O Paste

Hirose A., Itou T., Ogura T., Osaka University, JP

We have proposed a new bonding process using Ag2O paste composed of Ag2O particles mixed with reduction agent of triethylene glycol (TEG). Ag nanoparticles formed at around 130℃ to 160℃ through the reduction process. Such [...]

Enhanced Cytotoxicity of Doxorubicin Conjugated to Ultrasmall Au Nanoparticles

Zhang E., Ntumba K., Nadeau J., McGill University, CA

In this study we find that ultra-small (mean diameter, 2.8 nm) Au nanoparticles conjugated to doxorubicin (Au-Dox) are up to five-fold more cytotoxic to B16 melanoma cells than Dox alone. The particles enter the cell [...]

AuAg-alloy-nanoprobes for specific nucleic acid detection

Doria G., Larguinho M., Dias J.T., Pereira E., Franco R., Baptista P., CIGMH/DCV & REQUIMTE/DQ, PT

Due to their unique optical properties, noble metal nanoparticles, and in particular gold nanoparticles (AuNPs), have been extensively used for the development of new molecular diagnostic assays[1]. These optical properties derive from the characteristic surface [...]

Formation and stabilization of gold and silver clusters and nanoparticles in mordenites

Pestryakov A., Bogdanchikova N., Tuzovskaya I., Avalos M., Farías M.H., Tomsk Polytechnic University, RU

Supporting silver and gold on mordenites by ion-exchange method with further reduction with H2 leads to formation of neutral and charged metal clusters inside zeolite channels as well as metal nanoparticles on external surface of [...]

Green Chemistry Used in the Synthesis and Characterization of Silver and Gold Nanoparticles

Vallejo R., Segovia P., Elizondo N., Vázquez O., Coello V., Castaño V., Universidad Autonoma de Nuevo Leon, MX

Gold (Au) and silver (Ag) nanoparticles have a diversity of interesting properties between which they emphasize the electrical ones, optical, catalytic and the applications in biomedicine like antibacterial and antiviral, same that depend on their [...]

Inhibitory Effects of Gold and Silver Nanoparticles on RSV Studied by Atomic Force

Boyoglu S., Vig K., Pfendt A., Pillai S., Willing G.A., Singh S.R., Alabama State University, US

Human Respiratory Syncytial Virus (RSV) causes severe lower respiratory tract infections in infants which may progress to pneumonia. RSV accounts for approximately 4,500 deaths and 90,000 hospitalizations in infants and children in the United States [...]

Respiratory Syncytial Virus Inhibition by Gold and Titanium Nanoparticles

Vig K., Boyoglu S., Rangari V., Pillai S., Singh S.R., Alabama State University, US

Respiratory Syncytial Virus (RSV) is the leading cause of severe respiratory illnesses including bronchiolitis and pneumonia in young children. The RSV surface proteins F (fusion) and G (attachment) are major targets for vaccine development against [...]

Optimization of Phage-Based Magnetoelastic Biosensor Performance

Huang S., Yang H., Johnson M., Wan J., Chen I., Petrenko V.A., Chin B.A., Auburn University, US

A magnetoelastic (ME) platform coated with a bio-molecular recognition element (bacteriophage) for selective and specific recognition of Bacillus anthracis spores is described. ME materials have a mass-sensitive, characteristic, resonant frequency. In response to the binding [...]

Optimization of Phage-Based Magnetoelastic Biosensor Performance

Huang S., Yang H., Johnson M., Wan J., Chen I., Petrenko V.A., Chin B.A., Auburn University, US

A magnetoelastic (ME) platform coated with a bio-molecular recognition element (bacteriophage) for selective and specific recognition of Bacillus anthracis spores is described. ME materials have a mass-sensitive, characteristic, resonant frequency. In response to the binding [...]