Intracellular Self-Assembly and Disassembly of (19)F Nanoparticles Confer Respective "Off" and "On" (19)F NMR/MRI Signals for Legumain Activity Detection in Zebrafish.

Intracellular Self-Assembly and Disassembly of (19)F Nanoparticles Confer Respective "Off" and "On" (19)F NMR/MRI Signals for Legumain Activity Detection in Zebrafish.