at_charlie_johnson | almamater | stanford_university <sep> alan t charlie johnson is an american physicist, professor of physics and astronomy at the university of pennsylvania, and the director of the nano/bio interface center at the university of pennsylvaniajohnson's research spans experimental nanoscale physics, combining nanotechnology and biophysics his research is involved specifically in transport within nanostructures and carbon nanotubes, which revolves around graphene, dna, synthetic proteins, and other biomolecules his research also involves the development of scanning probe techniques to measure electronic properties in nanomaterials and nanodevicesjohnson is also the founding executive editor of aip advances and the co-founder of graphene frontiers, llc 
stanford university is a.t. charlie johnson's almamater.alan t. charlie johnson is professor of physics and astronomy at the university of pennsylvania