CalTech’s virus weighing machine.
It can measure the mass of a single molecule; it can measure the mass of a virus or protein.
The device—which is only a couple millionths of a meter in size—consists of a tiny, vibrating bridge-like structure. When a particle or molecule lands on the bridge, its mass changes the oscillating frequency in a way that reveals how much the particle weighs.
Tags: molecule weighing machine, measuring mass of a molecule, mass of a virus, mass of a protein, virus weighing machine, protein weighing machine