Photoejection kinetics of a) free 1, b) 1-loaded PEG-ASP CNAs, c) free 2, and d) 2-loaded PEG-ASP CNAs. The blue lines indicate the spectra of initial Ru complex prodrugs, red lines indicate final photoactivated product(s), and the green line in c) indicates a transition between the primary and secondary phases (t = 90 sec).