Optimization of laser radiation parameters for an affect on pigments, based on titanium dioxide (TiO2)

The purpose of this work is to explore the effects of laser radiation on pigments based on titanium dioxide by changing its parameters. A qualitative assessment of the results of the experiments showed that laser irradiation of the pigment in solutions with concentrations from 10% to 1×10-2%, λ = 1024 nm, τ = 750 ps and an energy density of 8.7 J/cm2 leads to an increase in the turbidity of the solution and its whiter shade. Analysis of images from a microscope showed that pigment destruction is observed. Overall, the principle of destruction of the white pigment in the laboratory was proposed and the feasibility of further in vivo testing was evaluated. As a result of the research, an obtained data will serve as the foundation for the development of methods for removing white pigments for tattoos and will increase the effectiveness of permanent makeup removal.