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Transmission electron microscopy (TEM) images of (A) bare superparamagnetic iron nanoparticles (SPIONs) (inset: high resolution (HR)-TEM image of one nanoparticle), (B) SPIONs-CPTES, and (C) SPIONs-CPTES-HAPtS and dynamic light scattering (DLS) curves of bare and functionalized SPIONs in (D) water (10-2 NaCl) and (E) phosphate buffer solution (PBS) 0.1× (pH 7.4).
