News tagged with silver
Related topics: nanoparticles , gold
Scientists evaluate different antimicrobial metals for use in water filters
Porous ceramic water filters are often coated with colloidal silver, which prevents the growth of microbes trapped in the micro- and nano-scale pores of the filter. Other metals such as copper and zinc have also been shown ...
Nanotechnology / Bio & Medicine
May 24, 2012 |
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Electron hopping in graphene oxide leads to highly sensitive sensing
(Phys.org) -- Graphene has many promising applications on its own, but pairing the two-dimensional material with the semiconductor titanium dioxide (TiO2) extends its capabilities even further. A team of ...
Nanotechnology / Nanomaterials
May 17, 2012 |
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New treatments could reduce odors in cotton fabric
Socks, T-shirts and other garments could become less hospitable to odor-causing bacteria, thanks to new antimicrobial treatments being investigated by U.S. Department of Agriculture (USDA) scientists in New ...
Nanotechnology / Bio & Medicine
May 11, 2012 |
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High-tech tactic may expose stealthy salmonella
Even the smallest quantity of Salmonella may, in the future, be easily detected with a technology known as SERS, short for "surface-enhanced Raman scattering." U.S. Department of Agriculture (USDA) scientist ...
Apr 10, 2012 |
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Nano rescues skin: Shrimp shell nanotech for wound healing and anti-aging face cream
Nanoparticles containing chitosan have been shown to have effective antimicrobial activity against Staphylococcus saprophyticus and Escherichia coli. The materials could be used as a protective wound-healing material to a ...
Nanotechnology / Bio & Medicine
Mar 16, 2012 |
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Moroccan villagers steamed up over silver mine
Atop a remote mountain overlooking one of Africa's largest silver mines, a group of Moroccan activists -- many of them women and children -- are trying to choke off the facility's water supply.
Mar 16, 2012 |
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Are silver nanoparticles harmful?
Silver nanoparticles cause more damage to testicular cells than titanium dioxide nanoparticles, according to a recent study by the Norwegian Institute of Public Health. However, the use of both types may affect testicular ...
Nanotechnology / Bio & Medicine
Mar 14, 2012 |
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Metamaterials may advance with new femtosecond laser technique
Researchers in applied physics have cleared an important hurdle in the development of advanced materials, called metamaterials, that bend light in unusual ways.
Mar 08, 2012 |
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Wash your mouth out with silver
Yeasts which cause hard-to-treat mouth infections are killed using silver nanoparticles in the laboratory, scientists have found. These yeast infections, caused by Candida albicans and Candida glabrata target the young, ol ...
Mar 08, 2012 |
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Tiny fractal trees for solar power
Microscopic "fractal trees" grown from silver could be the basis of a new type of solar cell, say chemists at the University of California, Davis.
Nanotechnology / Nanomaterials
Mar 05, 2012 |
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New measuring techniques can improve efficiency, safety of nanoparticles
Using high-precision microscopy and X-ray scattering techniques, University of Oregon researchers have gained eye-opening insights into the process of applying green chemistry to nanotechnology that results in high yields, ...
Nanotechnology / Bio & Medicine
Feb 28, 2012 |
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Silver nanoparticles trap mercury
(PhysOrg.com) -- Anyone who thinks amalgams are limited to tooth fillings is missing something: Amalgams, which are alloys of mercury and other metals, have been used for over 2500 years in the production ...
Nanotechnology / Nanomaterials
Feb 16, 2012 |
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Japanese company develops silver ink that requires no heat to harden
(PhysOrg.com) -- Consider for a moment, all the circuit boards that have been made, particularly those in the past few years. Most have two parts to them, not including the board itself. The first are parts ...
Jan 19, 2012 |
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Particle-free silver ink prints small, high-performance electronics
University of Illinois materials scientists have developed a new reactive silver ink for printing high-performance electronics on ubiquitous, low-cost materials such as flexible plastic, paper or fabric substrates.
Nanotechnology / Nanomaterials
Jan 13, 2012 |
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Light makes write for DNA information-storage device
Researchers have demonstrated a write-once-read-many-times information-storage device, made of DNA embedded with silver nanoparticles, that uses ultraviolet light to encode data.
Jan 05, 2012 |
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