The Aptamer Functionalized Nanocomposite Used for Prostate Cancer Diagnosis and Therapy

Figure 5

Schematic illustration of aptamer-based molecular imaging probes. The aptamer is conjugated by a linker to a label that allows detection by an imaging instrument. These probes generally used for nuclear imaging or fluorescence imaging. For MRI and other imaging techniques, aptamers are linked to contrast agents based on nanoparticles, which can be simultaneously labeled with several labels to build multimodal imaging probes.

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