ABSTRACT
This chapter covers the area of direct ion-beam activation of nanoparticles (NPs), a method that has been studied and optimised over several years and can be used to radiolabel certain types of dry nanoparticulate powders to useful activity levels without significant modification of the nanoparticle properties. The method, like all other radiolabelling methods for NPs, has advantages and disadvantages, and whether this or another method should be used has to be decided on a case-by-case basis depending on the experiments to be performed and the type of information about the nanoparticle behaviour that is desired.
