“…[109] Thea uthors developed nuclear imaging probes by labelling the REGs with ah ydrazine-modified diagnostic radionuclide (DOTA = 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid), which displayed good biocompatibility in the cell models.I n al ater study,t he DOTAl abeling was complemented with af luorescent dye (cyanine 5), enabling systematic investigations of the nanoparticle biodistribution in vivo by nuclear and optical imaging. [151] Figure 8. a) Cryo-EM micrograph of patchy PMETAC-grafted CNCs labelled with Au 0 NPs.…”