Micro-CT Imaging of RGD-Conjugated Gold Nanorods Targeting Tumor In Vivo

Figure 5

Dark-field imaging of U87 cells and HT-29 cells. (a) PEG-AuNRs with U87 cells. (b) PEG-AuNRs with HT-29 cells. (c) RGD-AuNRs with U87 cells. (d) RGD-AuNRs with HT-29 cells. (e) The corresponding amplified image of U87 cells in (c). (f) The corresponding amplified image of HT-29 cells in (d). Integrin expression in U87 cells is positive, so the brightness of the RGD-AuNRs targeting U87 cells in the dark-field imaging is highest. The scale bar of (a–d) is 30 μm with (e–f) 10 μm.

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