Displaying In Vivo “Assembly–Disassembly” Cascade with “Off–On–Off” Magnetic Resonance Imaging Signals in Tumor

clearly shows "Off-On-Off" signals to reflect the "Assembly-Disassembly" cascade of Gd nanoparticles in tumor. We expect that our strategy of real-time display of in vivo "Assembly-Disassembly" cascade could help people to optimize their nanodrug-based tumor theranostics in the near future.