Fluorescent Nanorods and Nanospheres for Real‐Time In Vivo Probing of Nanoparticle Shape‐Dependent Tumor Penetration

Shape dependent: Fluorescent quantum‐dot‐based nanospheres and nanorods with identical hydrodynamic size and surface properties but different aspect ratios were developed for real‐time in vivo tumor imaging. The nanorods exhibited superior transport and distribution into mammary tumors in vivo versus nanospheres of similar plasma half‐life.