Artificial Blood Vessels (image) Brigham and Women's Hospital Caption Artificial blood vessels are created using hydrogel constructs that combine advances in 3-D bioprinting technology and biomaterials. Credit Image courtesy of Khademhosseini Lab. Usage Restrictions Only use image in stories related to press release. 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.