Microwave-field-driven acoustic modes in DNA.
Publication
, Journal Article
Edwards, GS; Davis, CC; Saffer, JD; Swicord, ML
Published in: Biophysical journal
June 1985
The direct coupling of a microwave field to selected DNA molecules is demonstrated using standard dielectrometry. The absorption is resonant with a typical lifetime of 300 ps. Such a long lifetime is unexpected for DNA in aqueous solution at room temperature. Resonant absorption at fundamental and harmonic frequencies for both supercoiled circular and linear DNA agrees with an acoustic mode model. Our associated acoustic velocities for linear DNA are very close to the acoustic velocity of the longitudinal acoustic mode independently observed on DNA fibers using Brillouin spectroscopy. The difference in acoustic velocities for supercoiled circular and linear DNA is discussed in terms of solvent shielding of the nonbonded potentials in DNA.
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Published In
Biophysical journal
DOI
EISSN
1542-0086
ISSN
0006-3495
Publication Date
June 1985
Volume
47
Issue
6
Start / End Page
799 / 807
Related Subject Headings
- Solutions
- Nucleic Acid Conformation
- Microwaves
- Mathematics
- Kinetics
- Escherichia coli
- DNA, Circular
- DNA, Bacterial
- Biophysics
- 51 Physical sciences
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NLM
Edwards, G. S., Davis, C. C., Saffer, J. D., & Swicord, M. L. (1985). Microwave-field-driven acoustic modes in DNA. Biophysical Journal, 47(6), 799–807. https://doi.org/10.1016/s0006-3495(85)83984-9
Edwards, G. S., C. C. Davis, J. D. Saffer, and M. L. Swicord. “Microwave-field-driven acoustic modes in DNA.” Biophysical Journal 47, no. 6 (June 1985): 799–807. https://doi.org/10.1016/s0006-3495(85)83984-9.
Edwards GS, Davis CC, Saffer JD, Swicord ML. Microwave-field-driven acoustic modes in DNA. Biophysical journal. 1985 Jun;47(6):799–807.
Edwards, G. S., et al. “Microwave-field-driven acoustic modes in DNA.” Biophysical Journal, vol. 47, no. 6, June 1985, pp. 799–807. Epmc, doi:10.1016/s0006-3495(85)83984-9.
Edwards GS, Davis CC, Saffer JD, Swicord ML. Microwave-field-driven acoustic modes in DNA. Biophysical journal. 1985 Jun;47(6):799–807.
Published In
Biophysical journal
DOI
EISSN
1542-0086
ISSN
0006-3495
Publication Date
June 1985
Volume
47
Issue
6
Start / End Page
799 / 807
Related Subject Headings
- Solutions
- Nucleic Acid Conformation
- Microwaves
- Mathematics
- Kinetics
- Escherichia coli
- DNA, Circular
- DNA, Bacterial
- Biophysics
- 51 Physical sciences