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. Author manuscript; available in PMC: 2016 Apr 6.
Published in final edited form as: Proc SPIE Int Soc Opt Eng. 2016 Mar 1;9694:969406. doi: 10.1117/12.2213236

Figure 1.

Figure 1

Jablonski diagram for PDT. In type I reactions, the triplet photosensitizer will transfer an electron to 3O2 react with molecular targets to produce radical species, or alternatively interact directly with the acceptor, [A], without oxygen mediation. In type II reaction, the energy is transferred from the triplet photosensitizer to ground state molecular oxygen (3O2), creating reactive singlet oxygen (1O2).