News tagged with silver nanoparticles

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.

Nanotechnology / Nanophysics

created Jan 05, 2012 | popularity 4.7 / 5 (3) | comments 0 | with audio podcast

Monitoring the transformation of silver nanowires into gold nanotubes with in situ transmission X-ray microscopy

(PhysOrg.com) -- A technique for real-time monitoring of the galvanic replacement reaction between silver nanowires and aqueous gold salt solutions using in situ flow-cell transmission X-ray microscopy (TXM) ...

Nanotechnology / Nanophysics

created Dec 21, 2011 | popularity 2 / 5 (1) | comments 0

Researchers create rollerball-pen ink to draw circuits

(PhysOrg.com) -- Two professors from the University of Illinois; one specializing in materials science, the other in electrical engineering, have combined their talents to take the idea of printing circuits ...

Nanotechnology / Nanomaterials

created Jun 28, 2011 | popularity 4.8 / 5 (13) | comments 9 | with audio podcast report

New evidence for natural synthesis of silver nanoparticles

Nanoparticles of silver are being found increasingly in the environment—and in environmental science laboratories. Because they have a variety of useful properties, especially as antibacterial and antifungal ...

Nanotechnology / Nanomaterials

created May 11, 2011 | popularity not rated yet | comments 0 | with audio podcast

Common nanoparticles found to be highly toxic to Arctic ecosystem

Queen's researchers have discovered that nanoparticles, which are now present in everything from socks to salad dressing and suntan lotion, may have irreparably damaging effects on soil systems and the environment.

Nanotechnology / Bio & Medicine

created Apr 06, 2011 | popularity 5 / 5 (9) | comments 6 | with audio podcast

Producing clean water in an emergency

Disasters such as floods, tsunamis, and earthquakes often result in the spread of diseases like gastroenteritis, giardiasis and even cholera because of an immediate shortage of clean drinking water. Now, chemistry researchers ...

Nanotechnology / Bio & Medicine

created Feb 23, 2011 | popularity 4 / 5 (1) | comments 0

Nanosilver: A new name -- well-known effects

Nanosilver is not a new discovery by nanotechnologists -- it has been used in various products for over a hundred years, as is shown by a new Empa study. The antimicrobial effects of minute silver particles, which were then ...

Nanotechnology / Nanomaterials

created Jan 31, 2011 | popularity 5 / 5 (2) | comments 1

Advanced technology creates new range of multi-functional textiles

Research by two Victoria University PhD graduates has advanced cutting edge technology that combines wool with gold and silver to create a new range of multi-functional textiles.

Chemistry / Materials Science

created Jan 19, 2011 | popularity 5 / 5 (2) | comments 0

Killer paper for next-generation food packaging

Scientists are reporting development and successful lab tests of "killer paper," a material intended for use as a new food packaging material that helps preserve foods by fighting the bacteria that cause spoilage. The paper, ...

Nanotechnology / Bio & Medicine

created Jan 19, 2011 | popularity 5 / 5 (2) | comments 1 | with audio podcast

Study improves understanding of method for creating multi-metal nanoparticles

(PhysOrg.com) -- A new study from researchers at North Carolina State University sheds light on how a technique that is commonly used for making single-metal nanoparticles can be extended to create nanoparticles ...

Nanotechnology / Nanomaterials

created Dec 15, 2010 | popularity 4.5 / 5 (4) | comments 0 | with audio podcast

Gold and silver nano baubles

They might just be the smallest Christmas tree decorations ever. Tiny spherical particles of gold and silver that are more than 100 million times smaller than the gold and silver baubles used to decorate seasonal fir trees ...

Nanotechnology / Nanomaterials

created Dec 03, 2010 | popularity not rated yet | comments 1

Buried silver nanoparticles improve organic transistors

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 ...

Nanotechnology / Nanomaterials

created Aug 10, 2010 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Scientists unravel human-ecosystem interactions

Whether it is a single rock being overturned or an entire mountaintop being removed, humans play a continuous role in environmental processes, and vice versa. Ecological scientists will discuss findings on human-ecosystem ...

Biology / Ecology

created Aug 03, 2010 | popularity not rated yet | comments 0

Gold nanoparticles create visible-light catalysis in nanowires

(PhysOrg.com) -- A scientist at the Argonne National Laboratory has created visible-light catalysis, using silver chloride nanowires decorated with gold nanoparticles, that may decompose organic molecules ...

Nanotechnology / Nanophysics

created Jun 15, 2010 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Scientists develop environmentally friendly way to produce propylene oxide using silver nanoclusters

Scientists at the U.S. 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 ...

Nanotechnology / Nanomaterials

created Apr 08, 2010 | popularity 4.3 / 5 (6) | comments 0 | with audio podcast