Self-energy limited ion transport in sub-nanometer channels

Physics – Condensed Matter – Soft Condensed Matter

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

more experimental material is added. 4 pages, 7 figures

Scientific paper

10.1103/PhysRevLett.97.128104

The current-voltage characteristics of the alpha-Hemolysin protein pore during the passage of single-stranded DNA under varying ionic strength, C, are studied experimentally. We observe strong blockage of the current, weak super-linear growth of the current as a function of voltage, and a minimum of the current as a function of C. These observations are interpreted as the result of the ion electrostatic self-energy barrier originating from the large difference in the dielectric constants of water and the lipid bilayer. The dependence of DNA capture rate on C also agrees with our model.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Self-energy limited ion transport in sub-nanometer channels does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Self-energy limited ion transport in sub-nanometer channels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-energy limited ion transport in sub-nanometer channels will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-721421

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.