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a) Confocal microscopy images of incubation of PC-3 cells with viral NCs including Qβ–O488 and C60-conjugated Qβ–O488 and the subsequent cellular uptake (green). Cell nucleus and cell membrane were stained as shown in blue and red, b) cell viability using Qβ–O488 and C60-conjugated Qβ–O488 with and without phototherapy, indicating efficacy of cancer cell killing, Reprinted with permission from ref. 185, Copyright 2012 Royal Society of Chemistry.
