Figure 1: Studies of filamentous viruses using nanopores.
From: Stiff filamentous virus translocations through solid-state nanopores
(a) fd virus detection by a solid-state nanopore. The applied voltage draws a virus into the nanopore, where it blocks a measurable amount of ionic current. The detail sketches the single-stranded DNA (ssDNA) in its protein coat, which makes fd virus 880 nm long and 6.6 nm wide, with a linear charge density of −10 e nm−1 at pH 8.0. (b) AFM contact mode image of fd virus dried on a mica surface. Scale bar, 1 μm. (c) A histogram of fd virus lengths (N=87) as measured by atomic force microscopy.
