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Omniparticle contrast agent imaging capabilities. Phantoms showed imaged with A) Magnetic Particle Imaging (particle signal intensity (inset) overlaid with photo); B) Magnetic Resonance Imaging (1 – MNP core [30]; 2 – MNP core conjugated to Cy5.5; 3 – MNP core conjugated to Cy5.5 and thyroxine; 4 – completely oxidized nanoparticle core; 5 – water); C) Fluorescence imaging, D) Photoacoustic imaging, E) PET imaging and F) 3D computed tomography image afforded after T4 conjugation.
