Water-Based Invisible Ink (VIDEO) Cell Press 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 video is a demonstration of the water-based invisible ink developed by Qiang Zhao, Yun Ma, Wei Huang, and colleagues. Credit Nanjing University of Posts and Telecommunications Usage Restrictions Credit Required. 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.