Journal
OPTICS AND SPECTROSCOPY
Volume 120, Issue 1, Pages 28-37Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0030400X16010215
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Funding
- Russian Science Foundation [14-15-00186]
- Russian Science Foundation [14-15-00186] Funding Source: Russian Science Foundation
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Alterations of the optical and structural (weight, thickness, and square) parameters of skin caused by polyethylene glycol (PEG) with molecular weights of 300 and 400 Da were studied experimentally. The objects of the study were ex vivo skin samples of albino laboratory rats. Collimated transmittance of the skin was measured in the wavelength range 500-900 nm. As a result of exposure to the agents, an increase in the collimated transmittance and a decrease in weight, thickness, and square of skin samples were observed. Analysis of the kinetics of parameters alterations allowed us to measure the diffusion coefficient of the agents in the skin as (1.83 +/- 2.22) x 10(-6) and (1.70 +/- 1.47) x 10(-6) cm(2)/s for PEG-300 and PEG-400, respectively, and the rate of alterations of the structural parameters. The results obtained in this study can be used for the improvement of existing and development of new methods of noninvasive diagnostics and therapy of subcutaneous diseases.
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