Syringe Shear Test (IMAGE) University of Iowa Health Care Caption A syringe needle serves as the heart of a new, experimental microfluidic protocol to expose cancer cells to fluid shear stress. A new UI study suggests that resistance to fluid shear stress may be a biomarker for cancer cells, which could be used to improve detection and monitoring of circulating cancer cells in blood. Credit University of Iowa Usage Restrictions May be used with appropriate credit for news and educational purposes only 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.