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- Title
Identification of H-Bonds in a Calcified Aortic Valve.
- Authors
Ivanov-Omskii, V. I.; Rutkovskii, K. S.; Gulyaev, N. I.; Galenko, A. S.; Yastrebov, S. G.
- Abstract
The IR absorption spectra of subendothelial regions of the aortic valve cusps of a patient with calcified aortic stenosis diagnosis were measured by the attenuated total reflectance (ATR) spectroscopy technique in a frequency interval of 2500–3600 cm–1 and analyzed in comparison to the spectra of healthy human tissues and reference spectra of a pig's healthy bone and aortic valve. The IR absorption band structure in this spectral region was studied by means of expansion into Gaussian components. The energies of hydrogen bonds (H-bonds) involving O–H groups were estimated. It is established that, among all samples studied, the energy of H-bonds between hydroxyl groups reaches maximum in the bone tissue.
- Subjects
AORTIC valve; ATTENUATED total reflectance; ABSORPTION spectra; AORTIC stenosis; HYDROGEN bonding; GLYCOCALYX; AORTA
- Publication
Technical Physics Letters, 2019, Vol 45, Issue 9, p927
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/S1063785019090244