Gold Nanostar (image) Duke University Share Print E-Mail 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 Share Print E-Mail 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.