Alaa Selim (IMAGE) Concordia University Caption Alaa Selim: “Making a rapid, easy-to-use biosensor for people to check the quality of the food they are eating is empowering.” Credit Courtesy Alaa Selim Usage Restrictions None License Original 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.