Submillimeter-wave phonon modes in DNA macromolecules

被引：93

作者：

Woolard, D.L. ^{[1
]}

Globus, T.R. ^{[2
]}

Gelmont, B.L. ^{[2
]}

Bykhovskaia, M. ^{[3
]}

Samuels, A.C. ^{[4
]}

Cookmeyer, D. ^{[1
]}

Hesler, J.L. ^{[2
]}

Crowe, T.W. ^{[2
]}

Jensen, J.O. ^{[4
]}

Jensen, J.L. ^{[4
]}

Loerop, W.R. ^{[4
]}

机构：

[1] U.S. Army Research Laboratory, Army Research Office, Research Triangle Park, NC 27709

[2] Electrical Engineering Department, University of Virginia, Charlottesville, VA 22904

[3] Molec. Physiol. and Biol. Physics, University of Virginia, Charlottesville, VA 22904

[4] U.S. Army Soldier Biol./Chem. C., Edgewood, MD 21040

来源：

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics | 2002年 / 65卷 / 05期

关键词：

DNA - Electromagnetic field effects - Fourier transform infrared spectroscopy - Macromolecules - Permittivity - Raman spectroscopy - Resonance - Submillimeter waves;

D O I：

10.1103/PhysRevE.65.051903

中图分类号：

学科分类号：

摘要：

A detailed investigation of phonon modes in DNA macromolecules is presented. This work presents experimental evidence to confirm the presence of multiple dielectric resonances in the submillimeter-wave spectra (i.e., ∼0.01-10 THz) obtained from DNA samples. These long-wave (i.e., ∼1-30 cm-1) absorption features are shown to be intrinsic properties of the particular DNA sequence under study. Most importantly, a direct comparison of spectra between different DNA samples reveals a large number of modes and a reasonable level of sequence-specific uniqueness. This work establishes the initial foundation for the future use of submillimeter-wave spectroscopy in the identification and characterization of DNA macromolecules.

引用

页码：1 / 051903