News tagged with gold particles

Antihelium-4: Physicists nab new record for heaviest antimatter

(PhysOrg.com) -- Members of the international STAR collaboration at the Relativistic Heavy Ion Collider -- a particle accelerator used to recreate and study conditions of the early universe at the U.S. Department ...

Physics / General Physics

created Apr 24, 2011 | popularity 4.7 / 5 (23) | comments 11 | with audio podcast

Tailored optical material from DNA: Nano spiral staircases modify light

In the human body genetic information is encoded in double-stranded deoxyribonucleic acid building blocks, the so-called DNA. Using artificial DNA molecules, an international team of scientists headed by the ...

Nanotechnology / Nanomaterials

created Mar 14, 2012 | popularity 4.5 / 5 (2) | comments 0 | with audio podcast

Chemists cram two million nanorods into single cancer cell

(PhysOrg.com) -- Rice University chemists have found a way to load more than 2 million tiny gold particles called nanorods into a single cancer cell. The breakthrough could speed development of cancer treatments ...

Nanotechnology / Bio & Medicine

created Nov 16, 2011 | popularity 4.4 / 5 (10) | comments 5 | with audio podcast

Preparing a homogenous haystack

(PhysOrg.com) -- What if you could turn the whole haystack into needles? Instead of hunting for one item, you’d have 10 billion of the desired items laid out neatly in front of you. That’s what researchers ...

Nanotechnology / Nanomaterials

created Nov 28, 2011 | popularity 4 / 5 (1) | comments 0 | with audio podcast

Researchers find way to align gold nanorods on a large scale

Researchers from North Carolina State University have developed a simple, scalable way to align gold nanorods, particles with optical properties that could be used for emerging biomedical imaging technologies.

Nanotechnology / Nanomaterials

created Aug 17, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

'Fool's Gold' from the deep is fertilizer for ocean life

Similar to humans, the bacteria and tiny plants living in the ocean need iron for energy and growth. But their situation is quite different from ours--for one, they can't turn to natural iron sources like ...

Space & Earth / Earth Sciences

created May 09, 2011 | popularity 5 / 5 (8) | comments 1 | with audio podcast

Researchers' quest for gold

For University of Wisconsin-Milwaukee researchers studying the toxicity of gold nanoparticles - a minuscule material with potentially big biomedical applications - the road to a new medical advance may or may not be paved ...

Nanotechnology / Bio & Medicine

created Jul 22, 2011 | popularity not rated yet | comments 0

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

NMR used to determine whether gold nanoparticles exhibit 'handedness'

Carnegie Mellon University's Roberto R. Gil and Rongchao Jin have successfully used NMR to analyze the structure of infinitesimal gold nanoparticles, which could advance the development and use of the tiny ...

Nanotechnology / Bio & Medicine

created Dec 08, 2011 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Branch offices: New family of gold-based nanoparticles could serve as biomedical 'testbed'

(PhysOrg.com) -- Gold nanoparticles are becoming the ... well ... gold standard for medical-use nanoparticles. A new paper by researchers from the National Institute of Standards and Technology (NIST) and ...

Nanotechnology / Bio & Medicine

created Jun 22, 2011 | popularity 5 / 5 (1) | 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 mix of tiny gold and viral particles -- and the DNA ties that bind them

Scientists have created a diamond-like lattice composed of gold nanoparticles and viral particles, woven together and held in place by strands of DNA. The structure – a distinctive mix of hard, metallic ...

Nanotechnology / Nanomaterials

created Jan 27, 2011 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Opposites Attract and Inspire Electrocatalyst

(PhysOrg.com) -- Tiny gold particles will surround themselves with even smaller platinum bits, creating a complex structure that could turn a common preservative, formic acid, into electricity in a fuel cell, ...

Nanotechnology / Nanomaterials

created May 24, 2010 | popularity 4.5 / 5 (4) | comments 3 | with audio podcast

3-D cell culture: Making cells feel right at home

The film "Avatar" isn't the only 3-D blockbuster making a splash this winter. A team of Houston scientists this week unveiled a new technique for growing 3-D cell cultures, a technological leap from the flat petri dish that ...

Nanotechnology / Bio & Medicine

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

Self-destructing messages: Light-reactive coatings make metal nanoparticles into inks for self-erasing paper

(PhysOrg.com) -- Those who like to watch spy movies like “Mission Impossible” are familiar with the self-destructing messages that inform the secret agents of the details of their mission and then dissolve in a puff of smoke. ...

Nanotechnology / Nanomaterials

created Aug 26, 2009 | popularity 3.8 / 5 (4) | comments 1