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.
Currently, there is a widespread occurrence of breast cancer. Long-term radical mastectomy can lead to the development of lymphedema. Finding intraoperatively unaffected lymph nodes, and therefore their preservation, could prevent the development of lymphedema. The authors describe the hardware of the device of extended photodynamic visualization for differentiation of the lymphatic pathways of closely located organs. This devices allows to work with two dyes (methylene blue and indocyanine green) at once. The article also presents studies proving the efficiency of the methodology.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.