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Integrated effects of fractional laser microablation and sonophoresis on skin immersion optical clearing in vivo
Author(s) -
Genina Elina A.,
Bashkatov Alexey N.,
Terentyuk Georgy S.,
Tuchin Valery V.
Publication year - 2020
Publication title -
journal of biophotonics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 66
eISSN - 1864-0648
pISSN - 1864-063X
DOI - 10.1002/jbio.202000101
Subject(s) - in vivo , polyethylene glycol , optical coherence tomography , dermis , biomedical engineering , peg ratio , materials science , laser , chemistry , optics , anatomy , medicine , biology , physics , microbiology and biotechnology , organic chemistry , finance , economics
This study is aimed to find an approach for effective skin optical clearing in vivo using polyethylene glycol 300 (PEG‐300) as an optical clearing agent in combination with physical enhancers: fractional laser microablation (FLMA) and/or low‐frequency sonophoresis. In this study albino outbred rats were used. Light attenuation coefficient and optical clearing potential (OCP) of these approaches were evaluated in upper (from ~70 to ~200 μm) and middle (from ~200 to ~400 μm) dermis separately using optical coherence tomography. In 30 minutes, OCP of sonophoresis in combination with FLMA and PEG‐300 in the upper dermis was the maximal (2.3 ± 0.4) in comparison with other treatments in this time point. The most effective approach for optical clearing of middle dermis was PEG‐300 and sonophoresis; but the maximal value of OCP (1.6 ± 0.1) was achieved only in 90 minutes.