Gold Nanostar (IMAGE) Duke University Caption A gold nanostar under an electron microscope. The nanostar's size causes it to accumulate within tumors, where researchers use infrared light to heat it and destroy cancerous growths. Credit Tuan Vo-Dinh, Duke University 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.