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Molecular machines

— Science

Scientists create world's first fully-artificial molecular pump

By - May 23, 2015 4 Pictures

All living organisms – human, animal, or otherwise – continuously move molecules around their cells. It's a crucial mechanism of life, vital for feeding cells the proteins they need to function. And now scientists at Northwestern University have created a machine that mimics this pumping mechanism. Their molecular pump is the world's first such machine developed entirely through chemical engineering in the laboratory, and it could one day power artificial muscles and other molecular machines.

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— Science

'World's smallest electric motor' consists of a single molecule

By - September 5, 2011 1 Picture
Remember back in the old days, when nano-scale motors were a clunky 500 nanometers across? That record was subsequently broken with a 200-nanometer model, but has now been broken again, by a motor that’s just one nanometer wide. By comparison, the width of a human hair is about 60,000 nanometers. The new motor, created by scientists at Tufts University in Massachusetts, is reportedly the first one ever to consist of a single molecule. Read More
— Science

Researchers develop first molecular piston capable of self-assembly

By - March 14, 2011 2 Pictures
Just like a regular-sized device requires a regular-sized motor to operate, a nanodevice likewise requires a molecular-scale motor. In some cases, that motor takes the form of a piston, and building a piston that’s just a few nanometers long ... well, it’s pretty hard. It can and has been done, but it’s an extremely fiddly process. Now, scientists from France’s Centre National de la Recherche Scientifique (CNRS) and the Université de Bordeaux, along with colleagues in China, have developed a molecular piston that is capable of assembling itself. Read More
— Medical

Study finds two-legged molecules can outrun their four-legged counterparts

By - September 15, 2010 1 Picture
Molecular machines that seem to "walk" in living organisms transporting proteins between cells are the subject of a new study by University of California, Riverside researchers who hope to find out more about how these remarkable machines behave, in a development that could lead to important breakthroughs in medicine and the manufacturing of electronic devices. Read More
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