Professor Jensen’s research interests are focused on the nuclear fuel cycle, ranging from mechanisms of selectivity in chemical separations to biologically-based metal separations and the biochemistry and environmental chemistry of the transuranium elements. Mark has been studying the chemistry of the actinide and lanthanide elements as a scientist in the Heavy Element Chemistry and Separation Science Group at Argonne National Laboratory for the past twenty years. He received his Ph.D. in Inorganic and Nuclear Chemistry from Florida State University.