Urchin‐Shaped Manganese Oxide Nanoparticles as pH‐Responsive Activatable <i>T₁</i> Contrast Agents for Magnetic Resonance Imaging

Abstract

Image enhancement: Core–shell [email protected]3O4 urchin-shaped nanoparticles can be synthesized by means of an anisotropic etching process and used as a pH-activatable T1 contrast agent for magnetic resonance imaging. The manganese ions released from the MnO phase in the low-pH sites within tumor cells lead to an enhanced T1 contrast image for the entire tumor mass. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.