Potentiostat (IMAGE) Purdue University Caption This new paper-based diagnostic device detects biomarkers and identifies diseases by performing electrochemical analyses, and the assays change color to indicate specific test results. The device can plug into a handheld potentiostat, at left, to automate the diagnostic tests so that they can be performed by untrained users. (Purdue University photo/Aniket Pal) A publication-quality image is available at https://news.uns.purdue.edu/images/2017/martinez-potentiostat.jpg Credit (Purdue University photo/Aniket Pal) 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.