The IPDC is generating known and novel imaging probes for targeting receptors, cells, and tissues, and for preclinical in vivo evaluations by its intramural collaborators. Many such interesting agents have been described in the scientific literature, but are often not explored further due to lack of a reliable supply of reagent. One aspect of the IPDC's mission is to rectify this situation. IPDC-supplied reagents will not be limited to one imaging modality, but will include the flexible application of diverse technologies. Also, the IPDC will seek to develop novel state-of-the-art imaging probes in collaboration with biological and biomedical intramural scientists who can provide or suggest suitable targeting agent/receptor pairs.