Tucson-area optics firm Geost has been supplying sensor systems for U.S. defense and intelligence satellites since its founding by a University of Arizona optics Ph.D. two decades ago. Now, Geost is ...

Biosensors are devices used to detect the presence or concentration of a biological analyte, such as a biomolecule, a biological structure or a microorganism. Biosensors consist of three parts: a ...