Frances S. Ligler is a biochemist and bioengineer who was a 2017 inductee of the National Inventors Hall of Fame. Ligler's research dramatically improved the effectiveness of biosensors while at the same time reducing their size and increasing automation. Her work on biosensors made it easier to detect toxins and pathogens in food, water, or when airborne.
In a 2017 interview, Ligler summarized her work: "Optical biosensors is a whole field where biological molecules are being used for recognition and transduce an optical signal to a small device. My teams and I demonstrated the use of optical biosensors for detection of pathogens in food, infectious diseases in people, biological warfare agents, environmental pollutants, explosives and drugs of abuse — things that can kill you." Ligler's interests include microfluidics, tissue on chips, optical analytical devices, biosensors and nanotechnology. Ligler holds 35 patents and has authored over 400 scientific papers.