All Articles Tagged As: silver

Buried silver nanoparticles improve organic transistors (8/12/2010)

Out of sight is not out of mind for a group of Hong Kong researchers who have demonstrated that burying a layer of silver nanoparticles improves the performance of their organic electronic devices without requiring complex processing. Their findings are reported in the journal Applied Physics Letters. ...> Full Article

Gold nanoparticles create visible-light catalysis in nanowires (6/18/2010)

A scientist at the US Department of Energy's Argonne National Laboratory has created visible-light catalysis, using silver chloride nanowires decorated with gold nanoparticles, that may decompose organic molecules in polluted water. ...> Full Article

Antibacterial silver nanoparticles are a blast (5/25/2010)

Writing in the International Journal of Nanoparticles, Rani Pattabi and colleagues at Mangalore University, explain how blasting silver nitrate solution with an electron beam can generate nanoparticles that are more effective at killing all kinds of bacteria, including gram-negative species that are not harmed by conventional antibacterial agents. ...> Full Article

Ultrasensitive imaging method uses gold-silver 'nanocages' (4/15/2010)

New research findings suggest that an experimental ultrasensitive medical imaging technique that uses a pulsed laser and tiny metallic "nanocages" might enable both the early detection and treatment of disease. The system works by shining near-infrared laser pulses through the skin to detect hollow nanocages and solid nanoparticles - made of an alloy of gold and silver - that are injected into the bloodstream. ...> Full Article

Scientists develop environmentally friendly way to produce propylene oxide using silver nanoclusters (4/12/2010)

Scientists at the US Department of Energy's Argonne National Laboratory have identified a new class of silver-based catalysts for the production of the industrially useful chemical propylene oxide that is both environmentally friendly and less expensive. ...> Full Article

Silver proves its mettle for nanotech applications (3/22/2010)

Hao Yan and Yan Liu, professors at the Biodesign Institute's Center for Single Molecule Biophysics and their collaborators have introduced a new method to deterministically and precisely position silver nanoparticles onto self-assembling DNA scaffolds. ...> Full Article

The toxicity of antimicrobial silver in products can be reduced (2/27/2010)

Chemists at the University of Helsinki have managed to manufacture new polymer-stabilized silver nanoparticles. The result is significant because the antimicrobial characteristics of silver are used in textiles, floor coatings and paints even though the impact on health of silver nanoparticles are not entirely known. Finnish researchers now think that exposure to silver can be reduced by chemically binding the nanoparticles to polymers. The research results will soon be published in a leading journal in the field, Colloid and Polymer Science. ...> Full Article

Silver nanoparticles may one day be key to devices that keep hearts beating strong and steady (2/12/2010)

Diamonds and gold may make some hearts flutter on Valentine's Day, but in a University at Buffalo laboratory, silver nanoparticles are being designed to do just the opposite. ...> Full Article

An exquisite container (11/6/2009)

A tiny cage of gold covered with a smart polymer responds to light, opening to empty its contents and resealing when the light is turned off. The smart nanocages could be used to deliver drugs directly to target sites, thus avoiding systemic side effects. ...> Full Article

Knocking nanoparticles off the socks (10/29/2009)

Scientists in Switzerland are reporting results of one of the first studies on the release of silver nanoparticles from laundering those anti-odor, anti-bacterial socks now on the market. Their findings, scheduled for the Nov. 1 issue of ACS' journal Environmental Science & Technology, may suggest ways that manufacturers and consumers can minimize the release of these particles to the environment, where they could harm fish and other wildlife. ...> Full Article

Silver nanoparticles give polymer solar cells a boost (10/7/2009)

Small bits of metal may play a new role in solar power. Researchers at Ohio State University are experimenting with polymer semiconductors that absorb the sun's energy and generate electricity. The goal: lighter, cheaper and more-flexible solar cells. They have now discovered that adding tiny bits of silver to the plastic boosts the materials' electrical current generation. ...> Full Article

Nanophysics: Serving up Buckyballs on a silver platter (7/31/2009)

New measurements conducted on C60 molecules (carbon Buckyballs) adhered to silver substrates push the limits of surface science. ...> Full Article

New silver nanoparticle skin gel for healing burns (7/23/2009)

Scientists in India are reporting successful laboratory tests of a new and potentially safer alternative to silver-based gels applied to the skin of burn patients to treat infections. The researchers describe gel composed of silver nanoparticles -- each 1/50,000th the width of a human hair -- that appears more effective than these traditional gels. Their study is scheduled for the Aug. 3 issue of ACS' Molecular Pharmaceutics, a bimonthly journal. ...> Full Article

New silver-based ink has applications in electronics, researchers say (2/17/2009)

A new ink, composed of silver nanoparticles, can be used in electronic and optoelectronic applications to create flexible, stretchable and spanning microelectrodes that carry signals from one circuit element to another. The printed microelectrodes can withstand repeated bending and stretching with minimal change in their electrical properties. ...> Full Article

Nanoscale silver: No silver lining? (9/11/2008)

Existing knowledge gives start for assessment, highlights research needs ...> Full Article

Contact through silver particles in ink (5/7/2008)

Researchers print the conductor paths ...> Full Article

Too Much Technology May Be Killing Beneficial Bacteria (5/2/2008)

Engineer concerned about environmental impact of silver nanoparticles in wastewater treatment ...> Full Article

New nanotech products hitting the market at the rate of 3-4 per week (4/25/2008)

Nanotechnology consumer products are in your mouth and on your face ...> Full Article

Researchers study silver nanoparticles' potential for improving food safety (4/13/2008)

Scientists studying the potential of using silver nanoparticles to improve the safety of the world's food supply ...> Full Article

As nanotech goes mainstream, 'toxic socks' raise concerns (4/12/2008)

Nanotechnology is now available in a store near you ...> Full Article