3.5.1. Biodistribution Studies

Biodistribution studies of the FSC-based hybrid imaging agents radiolabeled with Gallium-68 were performed using healthy five-week-old female BALB/c mice (Charles River Laboratories, Sulzfeld, Germany). Animals (*n* = 3) were injected via lateral tail vein with 1 nmol of conjugate and a total activity of approximately 6 MBq. Mice were sacrificed by cervical dislocation 1 h p.i. followed by collection of the main organs and tissue, subsequent gamma counter measurement and calculation of the percentage of injected activity per gram tissue (% IA/g).
