Thursday, March 15, 2018 - 10:00am - 10:50am
Sandip Ghosal (Northwestern University)
In 1996 Kasianowicz et al. [PNAS vol 93, pp 13770-13773] reported a remarkable experiment. They created a synthetic version of a nanopore using molecular self-assembly on lipid bilayer of a bacterial exotoxin (alpha-hemolysin). The creation of the nanopore was signalled by the passage of an ion current that could be detected with a patch clamp amplifier. When negatively charged DNA is added to the reservoir on one side of the bilayer, the ion current is interrupted momentarily every time a single DNA molecule translocates the pore.
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