1 Department of Chemistry and Pharmacy & Central Institute of Advanced Materials and Processes (ZMP), University of Erlangen-Nürnberg, 91054, Erlangen, Germany.
HiPco and CoMoCAT single-walled carbon nanotubes (SWCNT) were fractionated with the aid of a novel perylene bisimide surfactant by combined co-surfactant and replacement density gradient ultracentrifugation (DGU).