Posts Tagged ‘polymers’
Bottle brush molecules filter impurities
U. BUFFALO (US) — Chemists have found a way to create tiny, tube-shaped molecular cages to capture and purify nanomaterials. Continue…
Thursday, December 8, 2011 8:15 - 0 Comments
Science & Technology - Nov 22, 2011 7:25 - 0 Comments
Sort nanotubes for better electronics
STANFORD (US) — A new technique could make semiconducting carbon nanotubes more commercially viable for use in printable circuits, bendable display screens, stretchable electronics, and solar technology. (more…)
Science & Technology - Oct 4, 2011 9:39 - 0 Comments
Pump may help materials self repair
U. ILLINOIS (US) — Researchers have demonstrated a pumping method to deliver pressurized liquid healing agents into artificial microvascular systems. (more…)
Health & Medicine - Sep 19, 2011 12:21 - 2 Comments
Gel shines bright to spot bacteria
U. SHEFFIELD (UK) — Polymers that light up in the presence of bacteria could offer a new way to quickly detect infected wounds. (more…)
Science & Technology - May 3, 2011 10:28 - 0 Comments
New tricks from old polymers
IOWA STATE (US) — Organic solar cells, light-emitting diodes, and thin-film transistors could be enhanced by polymers that mimic the properties of traditional inorganic semiconductors. (more…)
Science & Technology - Mar 23, 2011 16:29 - 0 Comments
Nanomaterial bulks up under stress
RICE (US) — A synthetic material gets stronger from repeated strain much like the body strengthens bone and muscle after repeated workouts. (more…)
Top Stories - Mar 7, 2011 12:31 - 0 Comments
Crank up voltage. Watch plastics crack
DUKE (US) — Engineers have documented how polymers—commonly found in wire insulation—breakdown when subjected to ever-increasing electric voltage. (more…)
Top Stories - Feb 1, 2011 12:40 - 0 Comments
Armor protects drug-releasing polymers
U. WARWICK (UK) — Chemists have figured out a way to add armor protection to polymer vesicles designed to carry a drug payload. (more…)
Science & Technology - Jan 31, 2011 11:21 - 0 Comments
Mussels reveal how to stick to it
U. CHICAGO (US) — Taking a cue from mussels, scientists have created a synthetic sticky substance for use as an adhesive or coating for underwater machinery, in biomedical settings as a surgical adhesive, or as a bonding agent for implants. (more…)
Science & Technology - Dec 8, 2010 19:53 - 0 Comments
Coated solar cells soak up more light
IOWA STATE (US) — Polymer solar cells that absorb more light—and are therefore more efficient—are now possible thanks to a new fabrication technology. (more…)
Science & Technology - Aug 27, 2010 12:22 - 0 Comments
Stretched polymer snaps back smaller
DUKE (US)—Crazy Bands are cool because no matter how long they’ve been stretched around a kid’s wrist, they return to their original shape. But when chemists stretch a springy polymer molecule, it snaps back much smaller than it was before. (more…)
Science & Technology - Aug 25, 2010 13:05 - 2 Comments
Grafts yield patterned nano-brushes
DUKE (US)—Engineers have developed a novel approach to synthesize miniscule bristles known as nano-brushes, which are currently being used in biologic sensors and microscopic devices, such as microcantilevers. (more…)
Science & Technology - Jul 19, 2010 11:09 - 0 Comments
Twisted crystals unravel as they grow
NYU (US)—Scientists from the U.S. and Russia have created crystals that can twist and untwist, pointing to a much more varied process of crystal growth than previously thought. (more…)
Science & Technology - Jun 16, 2010 17:14 - 1 Comment
Self-healing electronics on the microscale
U. ILLINOIS (US)—The concept of self-healing materials has been successfully demonstrated for polymers and is being developed for applications such as coatings on large scale structures like bridges. Now, researchers that pioneered this rapidly emerging field have shown that self-healing can also work for a critical small scale application: restoring lost conductivity in electronics. (more…)
Science & Technology - Jun 15, 2010 12:10 - 0 Comments
Why saliva forms beads when stretched
RICE (US)—Researchers have solved a long-standing mystery about why some fluids containing polymers—including saliva—form beads when they are stretched and others do not. (more…)
Science & Technology - Jan 6, 2010 16:58 - 2 Comments
Smart polymers perform nano-acrobatics
NYU—Researchers are finding remarkable ways in which bioengineered paired macromolecules can be made to self-assemble, disassemble, and more—and then biodegrade when they’ve finished their work. (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 - 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 1, 2009 11:16 - 0 Comments
Brain implants coated with nanotubes
U. MICHIGAN (US)—Newly developed brain implants that can more clearly record signals from surrounding neurons in rats may lead to more effective treatment of disorders such as Parkinson’s disease and paralysis. (more…)
