Direct excitation of internal modes of DNA by microwaves


Journal Article

We have been studying the microwave absorption characteristics of various forms of DNA. Our observations have demonstrated that long-chain DNA in saline buffer does not absorb microwaves significantly more than its solvent, but that specific short-length molecules can absorb microwaves resonantly. The most satisfactory explanation of these microwave absorption phenomena invokes the excitation of internal acoustic modes of the molecule. There is good agreement between our experimental observations and a lattice-dynamical/normal-mode analysis of the vibrational motion of the double helical DNA.

Full Text

Duke Authors

Cited Authors

  • Davis, CC; Edwards, GS; Swicord, ML; Sagripanti, J; Saffer, J

Published Date

  • January 1, 1986

Published In

Volume / Issue

  • 16 / 1

Start / End Page

  • 63 - 76

International Standard Serial Number (ISSN)

  • 0302-4598

Digital Object Identifier (DOI)

  • 10.1016/0302-4598(86)80046-0

Citation Source

  • Scopus