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. 2004 Oct;87(4):2598–2608. doi: 10.1529/biophysj.104.046219

FIGURE 8.

FIGURE 8

Photophysical scheme accounting for the processes observed in APC. D, donor; A, acceptor; RC*, radical cation; kabs, k(D)fl, k(A)fl, and kFRET are rate constants for absorption, donor fluorescence, acceptor fluorescence, and Förster energy transfer. kNR1 and kNR2 are rate constants for nonradiative deactivation.