WPI Prototype Liquid Biopsy Chip (IMAGE) Worcester Polytechnic Institute Caption A close-up of a prototype liquid biopsy chip developed and tested at Worcester Polytechnic Institute (WPI) by Balaji Panchapakesan, associate professor of mechanical engineering at Worcester Polytechnic Institute (WPI) and director of the Small Systems Laboratory, left, and post-doctoral researcher Farhad Khosravi. The chip is able to capture circulating tumor cells in a very small sample of blood. Etched into it are 76 individual test units, each with a small well containing antibodies for specific cancer cell surface markers attached to carbon nanotubes. Credit Worcester Polytechnic Institute (WPI) 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.