BioVinc is a R&D company that develops fluorescent molecular probes that target bone. The company's technology was developed by Professor Charles E. McKenna of the University of Southern California and has been used for research on bone metabolism, cancer, and dental conditions. The probes are derived from from nitrogen-containing bisphosphonates such as risedronate (RIS) and zoledronate. The company's principals have expertise in biophosphonate chemistry, microscopy, and pharmacology.