HB-Chip (image) Massachusetts General Hospital Caption The herringbone pattern of interior surfaces in the HB-Chip brings more circulating tumor cells into contact with the antibody-coated capture surfaces. The inset shows the uniform blood flow through the device. Credit Proceedings of the National Academy of Sciences 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.