Probing Nanotube-Nanopore Interactions

G. M. King and J. A. Golovchenko
Phys. Rev. Lett. 95, 216103 – Published 18 November 2005

Abstract

We demonstrate a new nanoscale system consisting of a nanotube threaded through a nanopore in aqueous solution. Its electrical and mechanical properties are sensitive to experimentally controllable conformational changes on sub-Angstrom length scales. Ionic current transport through a nanopore is significantly suppressed by the threading nanotube and the mechanical interactions between the nanotube and pore are accounted for by a folding geometry. The experiments provide first measurements of the longitudinal resolution and metrology of a solid-state nanopore “microscope.” This new nanostructure provides a means to study molecule-nanotube interactions in conducting ionic solutions as well as geometrical and surface properties of nanopores and nanotubes.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 2 May 2005

DOI:https://doi.org/10.1103/PhysRevLett.95.216103

©2005 American Physical Society

Authors & Affiliations

G. M. King1 and J. A. Golovchenko1,2

  • 1Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
  • 2Division of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 95, Iss. 21 — 18 November 2005

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×