BioPercept's technology presents a novel and unique approach, which enables rapid, general, and simple radiolabeling, and subsequent visualisation, of biopharmaceuticals. Our concept allows incorporation of any isotope, e. g. [2H], [3H], [13C], [14C], [18F], [19F], [11C], [123I], [125I], or [131I] into the same molecular probe, which binds strongly to any biological of interest. We have demonstrated proof of principle by way of a variety of studies, including in vivo visualisation of melanoma tumors in xenograft mice.