Graphene Aerogel (IMAGE) Kansas State University Caption A square sample of 3-D printed graphene aerogel is so lightweight that a wheat plant's individual awn can hold it without bending. The material -- developed by engineers from Kansas State University, the University at Buffalo and Lanzhou University in China -- has been declared the lightest 3-D printed material in the world by GUINNESS WORLD RECORDS. Credit Kansas State University 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.