An atomic force microscopy (AFM) scan reveals several hundred tobacco mosaic virus particles.
Image Credit: Alex McPherson/Univ. of Calif. Irvine
Atomic force microscopes detect minuscule changes in force between a probe tip and a sample to produce images of tiny objects. The microscope's probe is attached to a small cantilever, and the cantilever's angle changes as the sample's topography changes. Scientists reflect a laser beam off of the cantilever and detect the subtle changes in the deflected light as the cantilever's angle adjusts to the changing surface of the sample.
Visual Guide to Atomic Force Microscopy
More tobacco mosaic virus images