Gold 'Nanostar' (IMAGE) Kansas State University Caption Kansas State University engineers named structures like these snowflake-shaped gold nanostars, or SFGNs. These "snowflakes" are how gold formed on sheets of graphene floating in a solution. Credit Kansas State University department of chemical engineering 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.