Dimitrios Nikolelis received his PhD from the University of Athens in 1976 and is a professor of analytical and environmental chemistry at the University of Athens. He is the Editor of many scientific journals and has authored ca. 200 scientific articles. He is also the Editor of five books. His research is targeted on the fabrication of portable biosensors used for the detection of food toxicants and environmental pollutants such as hydrazines, dioxins, insecticides, toxins, etc.