Method Outcome Demonstration (IMAGE) ARC Centre of Excellence in Exciton Science Caption A logo of the element 'Au' assembled by EPD method with gold nanoparticles. Credit Heyou Zhang Usage Restrictions Please credit image author accordingly. 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.