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(a) 1O2 generation was confirmed by monitoring the oxidation of a singlet oxygen trap, diphenylisobenzofuran (DPBF). The inset shows the chemical transformation of DPBF in the presence of 1O2. (b) Evaluation of 1O2 generation of Pc4 in gold nanoparticles in EtOH solution. The data suggest that Pc4 molecules are indeed trapped in the polymer shell of the AuNP.
