Home > News > Thin liquids get thicker
October 30th, 2003
Thin liquids get thicker
Abstract:
Fluids confined to nanoscale dimensions are more viscous than in the bulk, say two German physicists. Thomas Becker and Frieder Mugele of the University of Ulm have squeezed an organic liquid between two flat plates and watched it drain away. They find that as the thickness of the liquid film approaches molecular dimensions, its sluggishness, as measured by the coefficient of viscosity, rises dramatically. This effect may be highly relevant for attempts to use liquid lubricants in microelectromechanical (MEMS) devices, because these liquid layers also commonly are just a few molecules thick.
Source:
* Nature
Bookmark:
Discoveries
Kinks and curves at the nanoscale: New research shows 'perfect twin boundaries' are not so perfect May 20th, 2013
Beautiful "flowers" self-assemble in a beaker: Elaborate nanostructures blossom from a chemical reaction perfected at Harvard May 17th, 2013
Artificial Forest for Solar Water-Splitting: Berkeley Lab Researchers Report First Fully Integrated Artificial Photosynthesis Nanosystem May 17th, 2013
Scientists capture first direct proof of Hofstadter butterfly effect May 17th, 2013