News tagged with nano particles

Rechargeable lithium-sulfur batteries get a boost from graphene

(PhysOrg.com) -- By wrapping tiny sulfur particles in graphene sheets, researchers from Stanford University have synthesized a promising cathode material for rechargeable lithium-sulfur batteries that could ...

Nanotechnology / Nanomaterials

created Jul 13, 2011 | popularity 4.2 / 5 (22) | comments 53 | with audio podcast feature

Sound could save circuits: Researchers theorize acoustic waves may cool microelectronics

(PhysOrg.com) -- "Hot sounds" has one meaning to music fans and another to physicists. Count a team of researchers at Rice University among the latter, as they've discovered that acoustic waves traveling along ...

Nanotechnology / Nanophysics

created Apr 28, 2010 | popularity 4.8 / 5 (14) | comments 1 | with audio podcast

Scientists 'photograph' nano-particle self-assembly

(PhysOrg.com) -- Scientists at the University of Glasgow have imaged the self-assembly of nano-particles, unveiling the blueprint for building designer molecular machines atom-by-atom.

Nanotechnology / Nanophysics

created Jan 04, 2010 | popularity 4.7 / 5 (16) | comments 0 | with audio podcast

Silver nanoparticles show 'immense potential' in prevention of blood clots

Scientists are reporting discovery of a potential new alternative to aspirin, ReoPro, and other anti-platelet agents used widely to prevent blood clots in coronary artery disease, heart attack and stroke. ...

Nanotechnology / Bio & Medicine

created May 27, 2009 | popularity 5 / 5 (7) | comments 4

Nanocups brim with potential: Light-bending metamaterial could lead to superlenses, invisibility cloaks

Researchers at Rice University have created a metamaterial that could light the way toward high-powered optics, ultra-efficient solar cells and even cloaking devices.

Nanotechnology / Nanophysics

created Mar 13, 2009 | popularity 4.8 / 5 (13) | comments 2

Creating nanostructures from the bottom up

Microscopic particles are being coaxed by Duke University engineers to assemble themselves into larger crystalline structures by the use of varying concentrations of microscopic particles and magnetic fields.

Nanotechnology / Nanophysics

created Apr 24, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Optical nanoantennas enable efficient multipurpose particle manipulation

University of Illinois researchers have shown that by tuning the properties of laser light illuminating arrays of metal nanoantennas, these nano-scale structures allow for dexterous optical tweezing as well ...

Physics / General Physics

created Jan 12, 2012 | popularity 4.5 / 5 (2) | comments 1 | with audio podcast

With a simple coating, nanowires show a dramatic increase in efficiency and sensitivity

By applying a coating to individual silicon nanowires, researchers at Harvard and Berkeley have significantly improved the materials' efficiency and sensitivity.

Nanotechnology / Nanophysics

created Jul 06, 2011 | popularity 4.8 / 5 (4) | comments 0 | with audio podcast

Controlled heating of gold nanoparticles

Tiny gold particles are good for transferring heat and could be a promising tool for creating localized heating in, for example, a living cell. In new experiments, German researchers at the Niels Bohr Institute ...

Nanotechnology / Nanomaterials

created Jan 17, 2011 | popularity not rated yet | comments 0 | with audio podcast

A 'magnetic' solution to identify and kill tumors

Though a valuable weapon against cancerous tumors, radiation therapy often harms healthy tissue as it tries to kill malignant cells. Now, Prof. Israel Gannot of Tel Aviv University's Department of Biomedical Engineering is ...

Nanotechnology / Bio & Medicine

created Aug 09, 2010 | popularity 4.9 / 5 (14) | comments 12 | with audio podcast

Paper electrified by copper particles

The Polymer Chemistry Research Group at the University of Helsinki, Finland, has succeeded in producing nano-sized metallic copper particles. When the size of particles is reduced to a nano-scale (one nanometre being one ...

Nanotechnology / Nanomaterials

created Mar 16, 2009 | popularity 2 / 5 (1) | comments 0

First high-resolution images of bone, tooth and shell formation

Researchers at Eindhoven University of Technology (The Netherlands) have for the first time made high-resolution images of the earliest stages of bone formation. They used the world's most advanced electron ...

Nanotechnology / Bio & Medicine

created Mar 12, 2009 | popularity 5 / 5 (4) | comments 0

Nano discs pose potential health risk

(PhysOrg.com) -- A revolutionary material that is used in computer technology could pose health risks to those involved in its manufacture.

Nanotechnology / Bio & Medicine

created Feb 21, 2012 | popularity 5 / 5 (1) | comments 0

Researchers show that gold doping increases nickel catalyst activity for carbon nanostructure formation

(PhysOrg.com) -- Researchers from the CNST and Arizona State University have demonstrated that the overall catalytic activity of nickel particles for the formation of carbon nanostructures is improved by the addition of a ...

Nanotechnology / Nanomaterials

created Oct 13, 2011 | popularity not rated yet | comments 0

Magnetic nano-'shepherds' organize cells

The power of magnetism may address a major problem facing bioengineers as they try to create new tissue -- getting human cells to not only form structures, but to stimulate the growth of blood vessels to nourish ...

Nanotechnology / Bio & Medicine

created Mar 31, 2009 | popularity 5 / 5 (1) | comments 0