Abstract:Nanoparticle imaging probes and drug delivery systems have distinct advantages over free or diffusive delivery in that they can concentrate the imaging contrast agent and/or drug, elicit controlled release/degradation, and have a high surface area to volume ratio beneficial for attaching targeting ligands. The size of these nanoparticles affects delivery, retention, degradation rate, and sometimes the radiological properties of the particles. For many optically active nanoparticles (such as gold, silver, and q… Show more
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