In 2011, the CDC reported diabetes afflicted 25.8 million people in the United States. This disease can be controlled by strict blood serum glucose level monitoring, but the gold standard fingerstick test is painful and must be done multiple times every day. The team is developing a colorimetric sensor that could provide an inexpensive, non-invasive test for determining the level of glucose in the patient’s blood, providing a painless alternative to the fingerstick testing method. By developing a novel phage matrix material and smartphone sensor analyzer, the team hopes to create a non-invasive point-of-care sensor that can identify the concentration of these compounds on the patient’s breath and accurately report the patient’s blood glucose levels.