Table 2. Photochemical and physical characterization of the FDAAs in this study.

^aData were measured in PBS buffer at pH 7.4 (containing 0.1% DMSO).

^bFDAAs were assigned “+++”, “++”, or “+” if the measured distribution coefficient log D _7.4 was <–1, between –1 and 0, or >0, respectively.

^cFDAAs were assigned “+++”, “++”, or “+” if the measured exponential decay coefficient was <0.1, 0.1–1, or >1, respectively.

^dThe data represent signal retention of absorbance of dye solution incubated at 37 °C for 5 min, 2 h, or 24 h, compared to the corresponding initial value.