Biomolecule Analysis with Nanopores in Graphene and Other Thin Solid-State Membranes

When: Thursday, May 23, 2013 at 4:00 pm
Where: DA 114
Speaker: Marija Drndić
Organization: University of Pennsylvania
Sponsor: Physics Colloquium

Graphene is an outstanding material for high-speed electronics, as well as a revolutionary membrane material due to its strength and atomic thickness.  Generally, nanopores with small diameters in thin membranes such as graphene, are interesting for single molecule studies. As molecules are driven through a nanopore, they reduce the ionic current passing through the pore and this reduction is used to detect and analyze molecules, including DNA, proteins and others.  Small nanopores in thin materials are particularly interesting because of their reduced pore resistance, allowing for larger ionic current signals and higher sensitivity for molecular analysis. I will compare and contrast current capabilities and the science obtained from graphene and silicon nitride nanopores and discuss ongoing measurement challenges that need to be overcome to realize a viable technology.

Host: Assistant Professor Meni Wanunu
Experimental Condensed Matter Physics