Posts Tagged ‘molecules’
Molecules fit together to form random tiles
U. NOTTINGHAM (UK) — Scientists have discovered they can prompt tiny flat molecules to fit together in a seemingly random pattern by adjusting the conditions in which the experiment is conducted. Continue…
Tuesday, December 6, 2011 13:09 - 0 Comments
Science & Technology - Sep 22, 2010 10:00 - 0 Comments
Lasers control ‘Goldilocks’ molecules
YALE (US) — Using lasers, physicists have been successful in cooling molecules down to temperatures near what’s known as absolute zero, about -460 degrees Fahrenheit. (more…)
Science & Technology - Sep 1, 2010 13:59 - 1 Comment
Front row seat to ultrafast chemical reaction
U. MICHIGAN (US)—To best observe chemical transformations in solution, molecular spectators have to be close to the action. (more…)
Health & Medicine - Jun 16, 2010 13:02 - 3 Comments
Tired but wide awake? Blame cytokines
EMORY (US)—Cytokines—products of the immune system—may be the culprits that cause insomnia, a new study finds. (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.”
Science & Technology - Aug 18, 2009 11:19 - 0 Comments
To get a reaction, molecules do the twist
A folded molecule is a new type of catalyst, and can selectively speed chemical reactions. A chain-like molecule (grey, lower right) was designed to fold in a helical pattern, mimicking the folding of peptides found in nature. This arrangement allows it to selectively interact with a pair of mirror-image chemical compounds (in green). The trajectory depicts how the folded molecule interacts with only one member of the pair, and selectively accelerates its conversion to a new chemical form.
Health & Medicine - Jun 3, 2009 16:20 - 0 Comments
Supercomputer takes on super flu
A view of the drug buried in the binding pocket of the A/H1N1 neuraminidase protein, a mushroom-shaped projection on the surface of the influenza virus that plays a crucial role in the virus’ reproductive cycle.
Science & Technology - Apr 29, 2009 14:10 - 1 Comment
Ultra-sensitive nanodevice ‘wired’ by light
YALE (US)—In the push to detect motion on the atomic level—like the spin of a single electron—researchers from Yale University have proposed using silicon-based nanocantilevers that are smaller than the wavelength of light. The novel approach employs photonic principles, eliminating the need for electric transducers and expensive laser setups. (more…)
Science & Technology - Mar 6, 2009 16:51 - 0 Comments
Two-armed nanorobot captures DNA molecules
NYU (US)—Scientists from the United States and China have designed one of the world’s smallest robots. The programmable two-armed device could be used to create new DNA structures, serving as a factory of sorts for assembling the building blocks of new materials. Applications range from developing new synthetic fibers to improving data encryption.
