Triple double gyroid (IMAGE) Northwestern University Caption This triple-double gyroid is a new colloidal crystal structure that has never been found in nature or synthesized before. The translucent red/green/blue balls show the positions of programmable atom equivalents (PAEs), while the dark grey balls and sticks show locations of electron equivalents (EEs). Credit Sangmin Lee Usage Restrictions Please credit Northwestern University 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.