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Kvantovaya Elektronika, 2007, Volume 37, Number 10, Pages 941–945 (Mi qe13609)  

This article is cited in 10 scientific papers (total in 10 papers)

Special issue devoted to the 25 anniversary of the A.M. Prokhorov General Physics Institute

Four-photon microwave laser spectroscopy of aqueous solutions of biopolymers

A. F. Bunkina, A. A. Nurmatova, S. M. Pershina, R. S. Khusainovab, S. A. Potekhinc

a Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
b Institute for Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region
c Institute of Protein Research, Russian Academy of Sciences, Pushchino, Moskovskaya obl.
Abstract: The four-photon laser radiation scattering spectra are obtained in the submillimetre range (75 – 95 cm-1) for deionised water, aqueous solutions of DNA and α-chymotrypsin protein. Narrow resonances are recorded whose frequencies coincide (within the resolution power of a spectrometer) with rotational frequencies in the ground electronic state and vibrational state of ortho and para isomers of H2O molecule in a gas phase and with the frequencies of the lines of H2O2 and OH- molecules. It is shown that the resonance contribution of the rotational lines of ortho isomers of H2O to the signal of four-photon scattering of native solutions of biopolymers increases by a factor of at least 8 compared to their contribution to the scattering signal in water, and becomes considerably larger than the contribution from the paraisomer lines. Denaturation of DNA after heating and cooling of the solution leads to the disappearance of such selectivity.
Received: 21.05.2007
Revised: 13.07.2007
English version:
Quantum Electronics, 2007, Volume 37, Issue 10, Pages 941–945
DOI: https://doi.org/10.1070/QE2007v037n10ABEH013609
Bibliographic databases:
Document Type: Article
PACS: 42.62.Fi, 78.35.+c
Language: Russian


Citation: A. F. Bunkin, A. A. Nurmatov, S. M. Pershin, R. S. Khusainova, S. A. Potekhin, “Four-photon microwave laser spectroscopy of aqueous solutions of biopolymers”, Kvantovaya Elektronika, 37:10 (2007), 941–945 [Quantum Electron., 37:10 (2007), 941–945]
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  • https://www.mathnet.ru/eng/qe/v37/i10/p941
  • This publication is cited in the following 10 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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