How the MasSpec Pen Works (VIDEO) University of Texas at Austin This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption This one-minute video demonstrates how the MasSpec Pen could be used during surgery to identify cancerous tissue in real-time. Credit Vivian Abagiu/Univ. of Texas at Austin 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.