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Latest Molecular machine Stories

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2009-02-15 08:33:22

Even within cells, the left hand knows what the right hand is doing. Molecular motors, the little engines that power cell mobility and the ability of cells to transport internal cargo, work together and in close coordination, according to a new finding by researchers at the University of Virginia. The work could have implications for the treatment of neurodegenerative disorders. "We found that molecular motors operate in an amazingly coordinated manner when moving an algal cell one way or the...

2009-02-12 09:29:19

Plasmonics -- a possible replacement for current computing approaches -- may pave the way for the next generation of computers that operate faster and store more information than electronically-based systems and are smaller than optically-based systems, according to a Penn State engineer who has developed a plasmonic switch."If plasmonics are realized, the future will have circuits as small as the current electronic ones with a capacity a million times better," said Tony Jun Huang, James...

2009-02-05 14:50:30

An international team of scientists led by the University of Leeds has shed new light on the little-understood motor protein called dynein, thought to be involved in progressive neurological disorders such as motor neurone disease. Researchers from the University's Astbury Centre for Structural Molecular Biology and from the University of Tokyo have for the first time identified key elements of dynein's structure, and the winch-like mechanism by which it moves. The research "“ funded by...

2009-02-02 10:15:06

This year's model isn't your father's nanocar. It runs cool.The drivers of Rice University's nanocars were surprised to find modified versions of their creation have the ability to roll at room temperature. While practical applications for the tiny machines may be years away, the breakthrough suggests they'll be easier to adapt to a wider range of uses than the originals, which had to be heated to 200 degrees Celsius before they could move across a surface.The nanocar was a sensation when...

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2005-10-21 18:58:16

Rice University scientists have constructed the world's smallest car -- a single molecule "nanocar" that contains a chassis, axles and four buckyball wheels. The "nanocar" is described in a research paper that is available online and due to appear in an upcoming issue of the journal Nano Letters. "The synthesis and testing of nanocars and other molecular machines is providing critical insight in our investigations of bottom-up molecular manufacturing," said one of the two lead researchers,...

2005-09-07 15:55:00

A major advance in nanotechnology with far-reaching potential benefits in medicine and other fields is to be announced at this year's BA Festival of Science in Dublin. Scientists have built molecules that can, for the first time ever, move larger-than-atom-sized objects. Constructing molecular machines capable of performing relatively large-scale mechanical tasks has never been achieved before. Now, in an unprecedented breakthrough, chemists at Edinburgh University have used light to...

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2005-09-07 08:30:00

DUBLIN -- Scientists have made a breakthrough in nanotechnology which could hasten the development of molecular machines that could act as artificial muscles or drug delivery systems in the body. Chemists at Edinburgh University said on Wednesday they had built molecules that can move objects larger than the size of an atom in an advance in the technology that deals with manipulating materials on a minuscule scale. "Although man's understanding of how to build and control molecular machines...

2005-07-30 14:44:08

EVANSTON, Ill. - While the human body has plenty of specialized molecular motors and machines powering the mechanical work necessary for cells to function properly, scientists themselves face many hurdles as they try to create their own molecular machines in the laboratory. The downsides of conventional molecular machines are that they are driven as an ensemble, by external light or chemistry, for example, and they are big -- made up of many molecules. These factors make these machines...

2005-07-18 05:24:09

UCLA chemists have created the first nano valve that can be opened and closed at will to trap and release molecules. The discovery, federally funded by the National Science Foundation, will be published July 19 in the Proceedings of the National Academy of Sciences. "This paper demonstrates unequivocally that the machine works," said Jeffrey I. Zink, a UCLA professor of chemistry and biochemistry, a member of the California NanoSystems Institute at UCLA, and a member of the research team....


Word of the Day
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.