Time-resolved UV fluorescence spectroscopy of aorta using 320-nm excitation

Abstract

Fluorescence decay of aorta and its fluorophores has been studied at 380, 440, and 480 nm using 320 nm picosecond dye laser excitation and time-correlated single photon counting technique. Fluorescence decay was found to be nonexponential at all emission frequencies. Fluorescence decay at 380 nm shows biggest differences between normal and plaque tissues.