Insulating behavior of lambda-DNA on the micron scale

Details Insulating behavior of lambda-DNA on the micron scale Insulating behavior of lambda-DNA on the micron scale

2002-05-08

arxiv.org/abs/physics/0205016v2

Phys. Rev. Lett. 89, 198102 (2002).

Physics

Biological Physics

4 pages in Tex, 3 figures in EPS; updated references

Scientific paper

10.1103/PhysRevLett.89.198102

We have investigated the electrical conductivity of lambda-DNA using DNA covalently bonded to Au electrodes. Thiol-modified dTTP was incorporated into the `sticky' ends of bacteriophage lambda-DNA using DNA polymerase. Two-probe measurements on such molecules provide a hard lower bound for the resistivity \rho>10^6 (Ohm cm) at bias potentials up to 20 volts, in conflict with recent claims of moderate to high conductivity. By direct imaging, we show that the molecules are present after the measurements. We stress the importance of eliminating salt residues in these measurements.

Affiliated with

Also associated with

No associations

Rating

Insulating behavior of lambda-DNA on the micron scale 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 Insulating behavior of lambda-DNA on the micron scale, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Insulating behavior of lambda-DNA on the micron scale will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-504935