Golden Scales: Nanoscale Mass Sensor Can Be Used To Weigh Individual Atoms And Molecules

There's a new "gold standard" in the sensitivity of weighing scales. Using the same technology with which they created the world's first fully functional nanotube radio, Berkeley Lab researchers have fashioned a nanoelectromechanical system that can function as a scale sensitive enough to measure the weight of a single atom of gold. This NEMS scale could prove especially useful for measuring the mass of proteins and other molecules which don't fare well in mass spectrometry.

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