Colloidal Rods (image) Universität Bayreuth Share Print E-Mail Caption Model of the colloidal rods of different lengths, which move like chess pieces on a magnetized chip. Credit Image: Adrian Ernst. Usage Restrictions None Share Print E-Mail 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.