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Characterization of synthesized silver nanoparticles (Ag NPs). A) Size distribution profile of 125I-Ag NPs as analyzed by photon correlation spectroscopy. B) Transmission electron microscopy (TEM) of 125I-Ag NPs. C) Light scattering as observed under a dark field real-time microscope (RTM). D) Absorption spectroscopy comparing Ag NPs and 125I-Ag NPs showed that the characteristic plasmon band for Ag NPs was not significantly altered after radiolabeling.
