Fotobabesleen eraginkortasuna aztertzen laser espektroskopiaren bidez

Abstract

Lan honetan fotobabesle sintetiko familia baten erlaxazio ez-erradiatzailea aztertu egin da, erradiazio ultramoretik babesteko erabilgarriak diren jakiteko. Konposatuen lasaikuntza-mekanismoak ezagutzeko, xurgapen iragankorreko espektroskopia eta denboraren araberako fluoreszentzia teknikak erabili diren bitartean, energia minimoko lasaikuntza-bideak CASSCF/CASPT2 metodoen bitartez aurreikusi egin dira. Lan honi esker, molekula sintetiko hauen babespen ahalmena ona dela demostratu da, xurgapen efizientzia handia eta fotoegonkortasun bikainak aurkezten dituzte eta.

This work focuses on the nonradiative relaxation channel of a family of synthetic sunscreens in order to elucidate its potential photoprotective behavior. The relaxation pathways of the samples were tracked by means of transient absorption spectroscopy and fluorescence upconversion techniques, whereas the minimum energy relaxation paths were predicted by CASSCF/CASPT2 methods. This work shows the photoprotective behavior of the synthesized molecules, which is demonstrated by their high absorption efficiency and excellent photostability.