Figure 3.
Fluorescence microscopy images of cellular uptake of AuNPs labeled with rhodamine B-labeled AuNPs in PC3 (A–D), DU145 (E–H) and LNCaP (I–L) cell lines. (A,E,I) were control groups (without treatment of AuNPs); (B,F,J) cells were treated with rhodamine-AuNPsp; (C,G,K) were treated with rhodamine-AuNPst; and (D,H,L) were treated with rhodamine-AuNPr. AuNPs-Rhodamine (red) cell nuclei were stained with DAPI (blue). AuNPsp-PEG, PEGylated spherical gold nanoparticles; AuNPst-PEG, PEGylated gold nanostars; AuNPr-PEG, PEGylated gold nanorods. Scale bars = 20 µm.