Bio-Nanomachines: Proteins As Resistance Fighters

Tuesday, August 18, 2009 - 00:15 in Physics & Chemistry

Friction limits the speed and efficiency of macroscopic engines. Is this also true for nanomachines? Researchers recently used laser tweezers to measure the friction between a single motor protein molecule and its track. The team found that also within our cells, motors work against the resistance of friction and are restrained in its operation—usually by far not as much though as their macroscopic counterparts.

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