News tagged with molecular switch

Protein associated with learning implicated in causing grasshoppers to swarm

New research has found that a protein associated with learning and memory plays an integral role in changing the behaviour of locusts from that of harmless grasshoppers into swarming pests.

Biology / Plants & Animals

created Dec 19, 2011 | popularity 5 / 5 (3) | comments 0 | with audio podcast

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), ...

Nanotechnology / Nanophysics

created Dec 12, 2011 | popularity 4.7 / 5 (7) | comments 0 | with audio podcast

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 ...

Nanotechnology / Nanophysics

created Dec 01, 2011 | popularity 4.8 / 5 (8) | comments 1 | with audio podcast

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 ...

Chemistry / Other

created Nov 25, 2011 | popularity 3.8 / 5 (6) | comments 5 | with audio podcast

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 ...

Biology / Biotechnology

created Oct 19, 2011 | popularity 5 / 5 (12) | comments 4 | with audio podcast

Researchers decipher the molecular basis of blue-green algae

Under normal conditions, cyanobacteria, also termed blue-green algae, build up energy reserves that allow them to survive under stress such as long periods of darkness. They do this by means of a molecular switch in an enzyme. ...

Biology / Cell & Microbiology

created Aug 01, 2011 | popularity not rated yet | comments 0 | with audio podcast

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 ...

Nanotechnology / Nanophysics

created Jul 20, 2011 | popularity 4.8 / 5 (5) | comments 3

A molecule that switches on and off

A single molecule whose charge state and shape can be changed at will: the latest breakthrough at the CEMES should prove a key advantage in the race for miniaturization. In addition to controlling its charge ...

Nanotechnology / Nanophysics

created Jun 10, 2011 | popularity 4 / 5 (5) | comments 3

Scientists discover switch to speed up stem cell production

A team of scientists from Genome Institute of Singapore (GIS) of the Agency for Science, Technology and Research (A*STAR) have shown how proteins involved in controlling genes work together to carry out their functions in ...

Biology / Cell & Microbiology

created May 18, 2011 | popularity not rated yet | comments 0

New study solidifies role of DISC1 in risk for schizophrenia and other mental illness

Johns Hopkins researchers report the discovery of a molecular switch that regulates the behavior of a protein that, when altered, is already known to increase human susceptibility to schizophrenia and mood disorders.

Medicine & Health / Genetics

created Apr 06, 2011 | popularity not rated yet | comments 0 | with audio podcast

Getting to the root of fatty liver disease

Researchers have identified a molecular switch that appears to be a common feature in the development of fatty liver disease. The discovery made in mice is consistent with data from human patients, suggesting ...

Medicine & Health / Medical research

created Apr 05, 2011 | popularity not rated yet | comments 0

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

created Mar 15, 2011 | popularity 5 / 5 (6) | comments 0 | with audio podcast

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.

Biology / Cell & Microbiology

created Feb 13, 2011 | popularity 5 / 5 (5) | comments 4 | with audio podcast

Scientist uncovers switch controlling protein production

A scientist from the Florida campus of The Scripps Research Institute has discovered a molecular switch that controls the synthesis of ribosomes. Ribosomes are the large machineries inside all living cells that produce proteins, ...

Biology / Cell & Microbiology

created Dec 22, 2010 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Molecular switch controls melanin production, may allow true sunless tanning

Discovery of a molecular switch that turns off the natural process of skin pigmentation may lead to a novel way of protecting the skin – activating the tanning process without exposure to cancer-causing UV radiation. ...

Medicine & Health / Genetics

created Oct 14, 2010 | popularity 5 / 5 (4) | comments 0

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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Related topics: cells , protein , molecules