Chris Geddes, Professor of Chemistry and Biochemistry, Director, Institute of Fluorescence Right now it can take hours, if not days, to test for bioagents such as salmonella or anthrax, complicating efforts to respond when a disease is spreading or when a letter containing suspicious white powder is found in the mail. Technology developed by Chris Geddes and his colleagues at UMBC's Institute of Fluorescence (www.theinstituteoffluorescence.com) cuts that time to seconds.