Synthesis and Bioevaluation of Iodine-131 Directly Labeled Cyclic RGD-PEGylated Gold Nanorods for Tumor-Targeted Imaging

Figure 2

Characterization of GNR-PEG-cRGD. (a) TEM of GNR-PEG. Zeta potentials (b), hydrodynamic diameter (c), and UV-vis spectra (d) of GNR-CTAB, GNR-PEG, and GNR-PEG-cRGD. (e) In vitro stability of ¹³¹IGNR-PEG-cRGD in PBS and FBS at 6, 12, 24, and 48 h after labeling.

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