Superficial fluorescence kinetics in mouse skin

Superficial PpIX fluorescence images were recorded at 0, 2, 4, 6, 8, 10, 12 and 24 hours after precursor application (group 1, Table 1). The 2 hour measurement was performed by temporarily removing the occlusive dressing from the site of administration. Superficial fluorescence imaging was performed used a set-up adapted from that described previously using 532 nm excitation light and 625±20nm detection [23].