This article is cited in 2 papers

Identification of H-bonds in a calcified aortic valve

V. I. Ivanov-Omskii^a, K. S. Rutkovskii^b, N. I. Gulyaev^c, A. S. Galenko^c, S. G. Yastrebov<sup>a

a</sup> Ioffe Institute, St. Petersburg
^b Saint Petersburg State University
^c Kirov Medical Force Academy, St. Petersburg

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.

Keywords: hydrogen bond, calcinosis, hydroxyapatite.

Received: 19.03.2019
Revised: 10.06.2019
Accepted: 10.06.2019

DOI: 10.21883/PJTF.2019.18.48233.17792

 English version: Technical Physics Letters, 2019, 45:9, 927–929

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