Jump to main content
Jump to site search

Issue 12, 2010
Previous Article Next Article

Force applied to a single molecule at a single nanogate molecule filter

Author affiliations

Abstract

We have investigated the origin of molecule filtering system based on a chemical potential barrier produced by thermodynamically driven molecular flow in a nanoscopic space at nanogates. Single molecule tracking experiments prove that the highly localized potential barrier allows for selective manipulation of the target molecule. We propose the presence of a force, a few fN per molecule, to decelerate the molecule's movement at the nanogate, which is comparable to or larger than the force applied by conventional electrophoretic operation. The present force can be tuned by changing the nanogate width at the nanometre level. These findings allow us to propose an accurate design of novel devices for molecular manipulation on an ultra small scale using a very small number of molecules without any external biases.

Graphical abstract: Force applied to a single molecule at a single nanogate molecule filter

Back to tab navigation

Supplementary files

Publication details

The article was received on 30 Jun 2010, accepted on 27 Sep 2010 and first published on 19 Oct 2010


Article type: Communication
DOI: 10.1039/C0NR00455C
Nanoscale, 2010,2, 2591-2595

  •   Request permissions

    Force applied to a single molecule at a single nanogate molecule filter

    B. Takimoto, H. Nabika and K. Murakoshi, Nanoscale, 2010, 2, 2591
    DOI: 10.1039/C0NR00455C

Search articles by author

Spotlight

Advertisements