Fig. 1. (a) Chemical structures of PcA1 and PcA2. Only the major C4h isomers are shown for tetra-substituted Pcs, which likely present the other isomers. (b) Electronic absorption and (c) fluorescence spectra (excited at 610 nm) of PcA1 and PcA2 (both at 4 μM) in DMF. Temperature variation profiles of (d) PcA1 and (e) PcA2 (both at 10 μM) in water with 0.1% CEL after being exposed to different laser irradiations (630 nm, 685 nm, and 730 nm, power densities are controlled at 1.0 W cm–2).
