IPC Assembly (image) University of Vienna Caption Overall neutral IPCs do not assemble in the vicinity of a charged bottom wall which attract the patches (left), assemble into a close packed structure when the substrate is neutral (center), and form open aggregates when the wall attract the equators (right). Credit (Copyright: American Chemical Society/ACS 2014) Usage Restrictions the image may only be used with appropriate caption or credit. 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.