Tohid Didar, McMaster University (IMAGE) McMaster University Caption McMaster University researcher Tohid Didar, a mechanical and biomedical engineer, led a team that has created a coating to make synthetic vascular grafts less prone to infection and clotting and more likely to integrate with the body. Credit Georgia Kirkos, McMaster University 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.