News tagged with molecular switch
Presto! Fast color-changing material may lead to more powerful computers (w/Video)
(PhysOrg.com) -- Researchers in Japan are reporting development of a new so-called "photochromic" material that changes color thousands of times faster than conventional materials when exposed to light.
Apr 23, 2009 |
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How hemp got high: Canadian scientists map the cannabis genome
A team of Canadian researchers has sequenced the genome of Cannabis sativa, the plant that produces both industrial hemp and marijuana, and in the process revealed the genetic changes that led to the plant's drug-producing proper ...
Oct 19, 2011 |
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Researchers create drug to keep tumor growth switched off
A novel -- and rapid -- anti-cancer drug development strategy has resulted in a new drug that stops kidney and pancreatic tumors from growing in mice. Researchers at the Moores Cancer Center at the University of California, ...
Feb 11, 2010 |
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Study provides insight into evolution of first flowers
(PhysOrg.com) -- Charles Darwin described the sudden origin of flowering plants about 130 million years ago as an abominable mystery, one that scientists have yet to solve.
May 18, 2009 |
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New trigger for chronic inflammation in rheumatoid arthritis discovered
(PhysOrg.com) -- A signal molecule made by the human body that triggers the immune system into action may be important in rheumatoid arthritis, according to new research published today in Nature Medicine. The au ...
Medicine & Health / Medical research
Jun 28, 2009 |
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Researchers invent a switch that could improve electronics
Researchers at the University of Pittsburgh have invented a new type of electronic switch that performs electronic logic functions within a single molecule. The incorporation of such single-molecule elements could enable ...
Dec 01, 2011 |
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The smallest conceivable switch: Targeted proton transfer within a molecule
For a long time miniaturization has been the magic word in electronics. Dr. Willi Auwaerter and Professor Johannes Barth, together with their team of physicists at the Technische Universitaet Muenchen (TUM), ...
Dec 12, 2011 |
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The first malaria-proof mosquito
For years, researchers worldwide have attempted to create genetically altered mosquitoes that cannot infect humans with malaria. Those efforts fell short because the mosquitoes still were capable of transmitting ...
Jul 15, 2010 |
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Insulin-releasing switch discovered
Johns Hopkins researchers believe they have uncovered the molecular switch for the secretion of insulin — the hormone that regulates blood sugar — providing for the first time an explanation of this process. In ...
Medicine & Health / Medical research
Mar 15, 2011 |
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Study sheds light on RNA 'on/off switches'
Scientists from The Scripps Research Institute have shed new light on a molecular switch that turns genes on or off in response to a cell's energy needs.
Feb 13, 2011 |
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New on-off 'switch' triggers and reverses paralysis in animals with a beam of light (w/ Video)
In an advance with overtones of Star Trek phasers and other sci-fi ray guns, scientists in Canada are reporting development of an internal on-off "switch" that paralyzes animals when exposed to a beam of ultraviolet ...
Nov 18, 2009 |
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An advance toward ultra-portable electronic devices
Scientists are reporting a key advance toward the long-awaited era of "single-molecule electronics," when common electronic circuits in computers, smart phones, audio players, and other devices may shrink ...
Jul 20, 2011 |
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When will artificial molecular machines start working for us?
Physicist Richard Feynman in his famous 1959 talk, "Plenty of Room at the Bottom," described the precise control at the atomic level promised by molecular machines of the future. More than 50 years later, synthetic molecular ...
Nov 25, 2011 |
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From cell division to ageing: Scientists locate main cell switches
(PhysOrg.com) -- Protein function and gene expression are often regulated by reversible modifications of already existing proteins. Scientists from the Max Planck Institute of Biochemistry and the University ...
Aug 17, 2009 |
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Next gen sequencing technology pinpoint 'on-off switches' in genomes
Scientists from the U.S. Department of Energy (DOE) Joint Genome Institute (JGI), Lawrence Berkeley National Laboratory, and the University of California, San Diego have developed a set of molecular tools ...
Biology /
Feb 12, 2009 |
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Molecular switch
A molecular switch is a molecule that can be reversibly shifted between two or more stable states. The molecules may be shifted between the states in response to changes in e.g. pH, light, temperature, an electrical current, microenvironment, or the presence of a ligand. In some cases, a combination of stimuli are utilized. The oldest forms of synthetic molecular switches are pH indicators, which display distinct colors as a function of pH. Currently synthetic molecular switches are of interest in the field of nanotechnology for application in molecular computers. Molecular switches are also important to in biology because many biological functions are based on it, for instance allosteric regulation and vision. They are also one of the simplest examples of molecular machines.
For more information about Molecular switch, read the full article at
Wikipedia.
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