Recent advances in photodynamic inactivation and photobiomodulation require extensive research of application safety in living tissues in vitro and in vivo. Superficial phototoxicity induced cellular morphological changes have been observed and recorded with using confocal Brillouin microspectrometer. We are reporting evidence of biomechanical processes occurring in cells subjected to high-power laser radiation. 4T1 murine fibroblast cells were used in the study, making results easily after exposure to high power laser radiation. Spatial distribution of subcellular structures’ stiffness was recorded with high precision and analyzed, drawing correlation between existing morphological model and novel stiffness data within the cell.
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