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(a, b) Maestro fluorescence images showing selective accumulation of AuNP-5kPEG-PSMA-1-Pc4 on PC3pip tumor. (c) Gold content of excised PC3pip and PC3flu tumors 3 h postinjection of AuNP-5kPEG-PSMA-1-Pc4 and (inset) sections of PC3pip and PC3flu stained with silver (scale bar = 1 cm).
