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Confocal microscopy images of HeLa cells after treatment by: (a) BSA-A565, (b) AuNR-BSA-A565, (c) AuNPr-BSA-A565 incubated for 24 h. Scale 30 µm. [BSA] = 5 µM, [AuNR-BSA, AuNPr-BSA] = 1 nM. Channels: bright blue (HOECHST), red (Atto-565), blue and red (merged).
