Dali San, Arizona State University (IMAGE) Arizona State University Caption Postdoctoral researcher Dali Sun adjusts his mobile adaptation of a dark-field microscope at the ASU Biodesign Institute . Dark-field microscopes can cost over $60,000 USD and Sun aimed to make a mobile phone adaptation of the microscope that could be used in developing areas where access to a traditional desktop darkfield microscope might not be possible. Credit Photo by Deanna Dent/ASUNow Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.