Posts Tagged ‘nanoscience’
Science & Technology - Feb 15, 2010 12:50 - 0 Comments
Gold nanowire bond stays strong naturally
RICE (US)—Welding uses heat to join pieces of metal in everything from circuits to skyscrapers. But researchers have found a way to beat the heat on the nanoscale. (more…)
Science & Technology - Feb 9, 2010 17:10 - 0 Comments
“Cell listeners” shine light on nanoscale function
U. ILLINOIS (US)—One way to understand biological structures and mechanisms, according to researcher Gabriel Popescu, is to “listen to them” through the use of new optical imaging methods that measure cellular motion at the nanoscale. (more…)
Science & Technology - Feb 8, 2010 11:36 - 1 Comment
For liquid crystals, shape matters
TEXAS A&M (US)—A new method for manipulating the molecules of liquid crystals could result in more effective industrial sealants, food packaging that keeps food fresh longer, and even enhanced electronic displays and fuel-cell technology. (more…)
Science & Technology - Feb 5, 2010 11:28 - 1 Comment
Physicists blast cancer with nanobubbles
RICE (US)—Using lasers and nanoparticles, scientists have discovered a new technique for singling out individual diseased cells and destroying them with tiny explosions. (more…)
Health & Medicine - Feb 3, 2010 1:17 - 0 Comments
Cancer-seeking nanoprobes pack a punch
UC BERKELEY (US)—Newly created nanoprobes may one day be used in the battle against cancer to selectively seek out and destroy tumor cells, as well as report back on the mission’s status. (more…)
Science & Technology - Jan 29, 2010 12:36 - 8 Comments
Take a hike with energy-harvesting rubber films
PRINCETON (US)—Power-generating rubber films could make it possible to harness natural body movements—such as breathing and walking—to power pacemakers, mobile phones, and other electronic devices. (more…)
Science & Technology - Jan 27, 2010 14:53 - 0 Comments
From gecko feet, lesson in nanotube transfer
RICE (US)—Geckos seem to defy gravity by sticking to a surface no matter how smooth it appears to be—all thanks to the electrical attraction between millions of microscopic hairs on the gecko’s feet and the surface. The same concept is allowing researchers to transfer forests of strongly aligned, single-walled carbon nanotubes from one surface to another in a matter of minutes. (more…)
Science & Technology - Dec 17, 2009 13:23 - 0 Comments
Scientists film photons with electrons
CALTECH (US)—Recently invented techniques—that allow the real-time, real-space visualization of fleeting changes in the structure of nanoscale matter—have been used to image the evanescent electrical fields produced by the interaction of electrons and photons, and to track changes in atomic-scale structures. (more…)
Health & Medicine - Nov 23, 2009 19:17 - 0 Comments
‘Sweet’ polymer is asthma’s kiss of death
JOHNS HOPKINS (US)—A sugar-coated polymer has been developed that selectively kills cells known to trigger aggressive allergy and asthma attacks. Scientists believe the advance could represent a significant step toward novel drug treatments. (more…)
Science & Technology - Nov 18, 2009 12:55 - 2 Comments
Marveling over ‘molecular chicken wire’
VANDERBILT (US)—The hottest, thinnest, toughest new material in physics and nanotechnology is graphene: a remarkably flat molecule made of carbon atoms arranged in hexagonal rings much like molecular chicken wire. (more…)
Science & Technology - Nov 16, 2009 17:14 - 0 Comments
Tiny light beam budges nanoscale object
CORNELL (US)—With a bit of leverage, researchers have used a very tiny beam of light with as little as 1 milliwatt of power to move a silicon structure up to 12 nanometers. That’s enough to completely switch the optical properties of the structure from opaque to transparent, they report. (more…)
Science & Technology - Oct 22, 2009 17:08 - 0 Comments
Patchy particles show promise for drug delivery
U. PENN (US)—A team of physicists, chemists, and engineers has demonstrated a novel method for the controlled formation of patchy particles, using charged, self-assembling molecules. The particles may one day serve as drug-delivery vehicles and perhaps be used in small batteries that store and release charge. (more…)
Science & Technology - Oct 2, 2009 12:55 - 0 Comments
Map helps quantum dots go ‘designer’
U. MICHIGAN (US)—The creation of the first atomic-scale maps of quantum dots may speed progress toward the goal of producing “designer dots” that can be tailored for specific applications. (more…)
Science & Technology - Aug 31, 2009 13:19 - 1 Comment
Candid camera at the nanoscale
“This is engineering at the ultimate atomistic limit,” says V. Ara Apkarian, who is leading a team attempting to record the first time-lapse images of single molecules. “There’s no question the tools that enable the observation and manipulation of one molecule at a time will be the pillars on which the field of nanotechnology will be built.”
