Knot (1 of 2) (IMAGE) International School of Advanced Studies (SISSA) Caption This image shows a knot. The study simulated the self-assembly of differently shaped fragments interacting in a virtual solution, successively modifying specific parameters in the shape of the fragments. "This way we selected the most suitable shapes for assembling various types of knots" explains Micheletti. Credit SISSA 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.