Dynamics of hydrated mucopolysaccharides in cartilaginous tissues treated by laser radiation

Alexander I. Omelchenko; Emil N. Sobol; Natalia Yu. Ignatieva; Valerii V. Lunin; Kornelia Jumel; Stephen E. Harding; Nicholas Jones

doi:10.1117/12.431504

4 May 2001 Dynamics of hydrated mucopolysaccharides in cartilaginous tissues treated by laser radiation

Alexander I. Omelchenko, Emil N. Sobol, Natalia Yu. Ignatieva, Valerii V. Lunin, Kornelia Jumel, Stephen E. Harding, Nicholas Jones

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Proceedings Volume 4241, Saratov Fall Meeting 2000: Optical Technologies in Biophysics and Medicine II; (2001) https://doi.org/10.1117/12.431504
Event: Saratov Fall Meeting 2000, 2001, Saratov, Russian Federation

Abstract

Dynamic mechanical properties of hydrated mucopolysaccharides have been studied in heated solutions by means of molecular hydrodynamic and acoustic techniques. These experiments model the thermal condition used for laser reshaping of cartilage. It has been shown that elastic modulus and internal friction depends on concentration of chondroitine sulphate in the solution and temperature. Maximum of internal friction was revealed at about 40 degree(s)C that corresponds to temperature of breakdown of hydrophobic bonds. Temperature dependence of internal friction manifests structural changes in polysaccharides molecules under laser heating.

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Alexander I. Omelchenko, Emil N. Sobol, Natalia Yu. Ignatieva, Valerii V. Lunin, Kornelia Jumel, Stephen E. Harding, and Nicholas Jones "Dynamics of hydrated mucopolysaccharides in cartilaginous tissues treated by laser radiation", Proc. SPIE 4241, Saratov Fall Meeting 2000: Optical Technologies in Biophysics and Medicine II, (4 May 2001); https://doi.org/10.1117/12.431504

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KEYWORDS

Cartilage

Molecules

Acoustics

Molecular lasers

Temperature metrology

Tissues

Molecular aggregates

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