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AFM Characterizes Bubbles that Should Not Be

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David L. Shenkenberg

Nanobubbles should not exist because they defy a law of physics. Bubbles with nanometer-size radii should have high pressure within them that causes them to be squeezed out in less than a second, according to LaPlace’s Law. However, nanobubbles last for hours. First discovered with atomic force microscopy (AFM), nanobubbles were thought possibly to be an artifact of the technique. Later, cryoelectron microscopy confirmed their existence. Now researchers from the University of Twente in Enschede, the Netherlands, have used AFM to discover new properties of nanobubbles. Researchers used...Read full article

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    Published: July 2007
    Glossary
    nanometer
    A unit of length in the metric system equal to 10-9 meters. It formerly was called a millimicron.
    Basic Sciencecryoelectron microscopyFeaturesMicroscopyNanobubblesnanometer

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