title: Ionic rectification by electrostatically actuated tethers on single walled carbon nanotube membranes.
abstract: Large electrostatically actuating charged tethers (~2.5 nm) at the tip entrances of single walled carbon nanotubes (i.d. ~ 1.5 nm) can dramatically enhance ionic gating at the CNT core entrance. Significant rectification of small ions at physiological ionic strengths is observed and this system closely mimics the function of protein channels.
authors: Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506, USA.
authors: Ji
authors: J
authors: Wu
authors: Xin
authors: X
authors: Zhan
authors: Bruce J
authors: BJ
authors: Hinds
mesh_terms: D007477:Ions / Q000737:chemistry; D008567:Membranes, Artificial; D037742:Nanotubes, Carbon / Q000737:chemistry*; D009994:Osmolar Concentration; D010316:Particle Size; D055672:Static Electricity; D013499:Surface Properties
chemical_list: D007477:Ions; D008567:Membranes, Artificial; D037742:Nanotubes, Carbon