Silicon Wafers (image) Georgia Institute of Technology Caption The researchers adapted an imprinting technology used in the semiconductor industry, which works like a cookie cutter but on the nanoscale. Drugs are mixed with a polymer solution and dispensed on a silicon wafer. Then a shape is imprinted onto the polymer-drug mixture using a quartz template. The material is then solidified using UV light. Whatever the cookie cutter's template -- triangle, rod, disc -- a nanoparticle with that shape is produced. Credit Rob Felt 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.