| Autor: |
Bunkin, Aleksei F, Lebedenko, S I, Nurmatov, Alisher A, Pershin, Sergei M |
| Zdroj: |
Quantum Electronics; July 2006, Vol. 36 Issue: 7 |
| Abstrakt: |
The spectra of coherent librations of H2O molecules, coinciding in frequencies with the rotational spectrum of gaseous H2O, are observed for the first time in aqueous solutions of α-chymotrypsin protein and hydrogen peroxide and in deionised Milli-Q water by the method of four-photon laser scattering in the frequency range 0—100 cm-1. The resonance contribution of molecular librations to the four-photon scattering signal considerably increases in aqueous solutions compared to water. The resonances related to the lines of the ortho- and para-modifications of the natural isotope of the H2O molecule in the gas phase are recorded in the four-photon scattering spectra. It is found that the protein molecule in aqueous solution selectively interacts with the para-H2O, which makes it possible to interpret some features of the interaction of microwave radiation with biological objects and to develop a new class of laser biotechnologies. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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