A Prussian Blue‐Based Core–Shell Hollow‐Structured Mesoporous Nanoparticle as a Smart Theranostic Agent with Ultrahigh pH‐Responsive Longitudinal Relaxivity

Novel core–shell hollow mesoporous Prussian blue @ Mn-containing Prussian blue analogue ([email protected]) nanoparticles, designated as HMPB-Mn) as an intelligent theranostic nanoagent, are successfully constructed by coating a similarly crystal-structured MnPBA onto HMPB. This can be used as a pH-responsive T1-weighted magnetic resonance imaging contrast agent with ultrahigh longitudinal relaxivity (r1 = 7.43 m m−1 s−1), and achieves the real-time monitoring of drug release. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to 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.