Nanobalance

 

Any device for determining the mass of a nanoparticle.

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Simply put, a nanoscale balance for determining mass, small enough to weigh viruses and other sub-micron scale particles. "A mass attached at the end of a nanotube shifts its resonance frequency. If the nanotube is calibrated (i.e., its spring constant known), it is possible to measure the mass of the attached particle." A nanobalance "could be useful for determining the mass of other objects on the femtogram to picogram size range." See Weighing The Very Small. Transmission electron microscope image shows "nanobalance:" a resonating carbon nanotube used to determine the mass of the attached carbon particle.

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