Use your tears to test glucose levels

A new type of diagnostic sensor could allow diabetics to test glucose levels using tears, sweat or urine rather than a blood sample. A Purdue University Ph.D. candidate developed it, and the group is seeking to publish its findings in the journal Advanced Functional Materials. The test, as developed, is designed to detect glucose in much smaller concentrations than currently possible. Someday, perhaps, the old pinprick tests could be a thing of the past. Release