Filament of silver (IMAGE) Delft University of Technology Caption A small twisted wire, just like the filament in an incandescent bulb, but made of silver, forms the basis for the special silver particles. Credit Sam Rentmeester/FMAX 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.