Structural changes in connective tissues caused by a moderate laser heating

Journal Article · Thu Oct 31 00:00:00 EST 2002 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2002V032N10ABEH002316· OSTI ID:21459974

Bagratashvili, Viktor N; Bagratashvili, N V; Sviridov, A P; Shakh, G Sh ^[1]; Ignat'eva, Natalia Yu; Lunin, Valery V; Grokhovskaya, T E; Averkiev, S V ^[2]

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1. Institute of Laser and Information Technologies, Russian Academy of Sciences, Troitsk, Moscow Region (Russian Federation)
2. Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow (Russian Federation)

The structural changes in adipose and fibrous tissues caused by 2- and 3-W IR laser irradiation are studied by the methods of IR and Raman spectroscopy and differential scanning calorimetry. It is shown that heating of fibrous tissue samples to 50 {sup 0}C and adipose tissue samples to 75 {sup 0}C by IR laser radiation changes the supramolecular structure of their proteins and triacylglycerides, respectively, without the intramolecular bond breaking. Heating of fibrous tissue to 70 {sup 0}C and adipose tissue to 90 - 110 {sup 0}C leads to a partial reversible denaturation of proteins and to oxidation of fats.

• OSTI ID: 21459974
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 32, Issue 10; Other Information: DOI: 10.1070/QE2002v032n10ABEH002316; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS
ADIPOSE TISSUE
CALORIMETRIC DOSEMETERS
FATS
INFRARED RADIATION
LASER RADIATION
LASER-RADIATION HEATING
OXIDATION
PROTEINS
RAMAN SPECTROSCOPY
ANIMAL TISSUES
BODY
CHEMICAL REACTIONS
CONNECTIVE TISSUE
DOSEMETERS
ELECTROMAGNETIC RADIATION
HEATING
LASER SPECTROSCOPY
MEASURING INSTRUMENTS
ORGANIC COMPOUNDS
PLASMA HEATING
RADIATIONS
SPECTROSCOPY