The use of persistent luminescence nanoparticles for in vivo optical imaging commonly requires ex vivo activation before systemic administration, hampering longer-term imaging capabilities. Now, it is shown that near-infrared emitting nanoprobes based on chromium-doped zinc gallate can be activated in vivo using low-energy red light and used for tumour-targeted imaging and cell tracking experiments.
- Thomas Maldiney
- Aurélie Bessière
- Cyrille Richard
