In an effort to simplify the process of diagnosing diseases caused by such pathogens as tuberculosis, chlamydia, gonorrhea and even HIV, Prof. Dan Luo, biological and environmental engineering, and Prof. Edwin Kan, electrical and computer engineering, have combined inventions from their respective fields to potentially revolutionize the way diseases are detected in the developing world with a new handheld device. Kan and Luo’s work on their joint invention is supported by the Bill & Melinda Gates Foundation as part of the Grand Challenge program to develop “point-of-care diagnostics” for developing countries that do not have the laboratory and research space to test and diagnose diseases.