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Latest Molecular machine Stories

Nanomachines: Devices Of The Future
2013-08-28 09:42:10

Institute of Physical Chemistry of the Polish Academy of Sciences An innovative measurement method was used at the Institute of Physical Chemistry of the Polish Academy of Sciences in Warsaw for estimating power generated by motors of single molecule in size, comprising a few dozens of atoms only. The findings of the study are of crucial importance for construction of future nanometer machines – and they do not instil optimism. Nanomachines are devices of the future. Composed of a...

Far-reaching Problem In Computer Simulations Deciphered By Scientists
2013-01-03 12:19:27

DOE/Lawrence Berkeley National Laboratory Because modern computers have to depict the real world with digital representations of numbers instead of physical analogues, to simulate the continuous passage of time they have to digitize time into small slices. This kind of simulation is essential in disciplines from medical and biological research, to new materials, to fundamental considerations of quantum mechanics, and the fact that it inevitably introduces errors is an ongoing problem for...

2012-01-16 10:29:05

Just like people, some proteins have characteristic ways of "walking," which (also like human gaits) are not so easy to describe. But now scientists have discovered the unique "drunken sailor" gait of dynein, a protein that is critical for the function of every cell in the body and whose malfunction has been associated with neurodegenerative disorders such as Lou Gehrig's disease and Parkinson's disease. The research, which was led by Samara Reck-Peterson of Harvard Medical School and...

2011-11-28 11:19:25

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 switches are a dime a dozen, but synthetically designed molecular machines are few and far between. Northwestern University chemists recently teamed up with a University of Maine physicist to explore the...

The World's Smallest Electric Car Made Out Of Single Molecule
2011-11-11 06:29:35

Scientists have developed the world's smallest electric car, made from a single molecule. The molecule has four branches that act as wheels and rotate when a tiny metal tip helps apply a small current of electricity to them. The car was made to move six billionths of a meter with just 10 electric bursts. The car's "batteries" are a scanning tunneling microscope, which is a fine point of metal that ends in just an atom or two.  As the tip draws near the molecule, electrons jump...

2011-11-07 16:43:52

How a molecular traffic jam impacts cell division Interdisciplinary research between biology and physics aims to understand the cell and how it organizes internally. The mechanisms inside the cell are very complicated. LMU biophysicist Professor Erwin Frey, who is also a member of the Cluster of Excellence “Nanosystems Initiative Munich” (NIM) is working with his group on one particular issue involved in the cell´s life. The professor for statistical and biological physics...

Image 1 - Researchers Develop Motor One Nanometer Wide
2011-09-05 11:39:59

  Researchers have developed an electric motor that is just a billionth of a meter across. The motor could be used in nanotechnology and in medicine, where tiny devices are used for efficient tasks. The tiny rotors are based on single molecules and is the first that can be individually driven by an electric current. The device is now the world's smallest electric motor at 1 nanometer across, shattering the old record of 200 nanometers across.  A single strand of human...

2011-08-11 21:49:21

The transport system inside living cells is a well-oiled machine with tiny protein motors hauling chromosomes, neurotransmitters and other vital cargo around the cell. These molecular motors are responsible for a variety of critical transport jobs, but they are not always on the go. They can put themselves into "energy save mode" to conserve cellular fuel and, as a consequence, control what gets moved around the cell, and when. A new study by Carnegie Mellon University biochemists, published...

2010-11-17 00:01:11

New findings by researchers at RIKEN and the Japan Science and Technology Agency (JST) have shed light on the remarkable electrochemical response properties of an elusive class of molecular helix structures, charting a new path in the design of molecular machines and devices. (PRWeb UK) November 16, 2010 New findings by researchers at RIKEN and the Japan Science and Technology Agency (JST) have shed light on the remarkable electrochemical response properties of an elusive class of...


Word of the Day
virgule
  • A punctuation mark (/) used to separate related items of information.
  • A little rod; a twig.
This word comes from the Late Latin 'virgula,' accentual mark, a diminutive of 'virga,' rod.
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