Abstract
We have studied the effects of relative humidity on the conductance of the assembly of poly(dG)-poly(dC) and poly(dA)-poly(dT) DNA molecules. The exponential dependence of conductance on the relative humidity is observed and explained in terms of ionic conduction through the hydration layers around DNA. The poly(dG)-poly(dC) specimen has larger sensitivity to the relative humidity and smaller activation energy for the ionic conduction than the poly(dA)-poly(dT) specimen. Our results show that the conductance of a specimen consisting of multiple DNA molecules might be strongly affected by the relative humidity.
| Original language | English |
|---|---|
| Pages (from-to) | 405-409 |
| Number of pages | 5 |
| Journal | Chemical Physics Letters |
| Volume | 355 |
| Issue number | 5-6 |
| DOIs | |
| Publication status | Published - 2002 Apr 8 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry