Directed Self Assembly (image) University of Texas at Austin Caption Comparison of the block copolymers self-assembling with and without the new top coat. In both cases the self-assembly took place under very simple conditions: 210°C for 1 min on a hot plate open to air. Credit AAAS Usage Restrictions None 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.