Patrick McCall, University of Chicago (IMAGE) University of Chicago Caption Patrick McCall, graduate student in physics, prepares a sample for examination in the Gardel laboratory at UChicago. Gardel's research group studies building blocks of the cytoskeleton, the materials inside a cell that provide its shape and allow it to move. Credit Robert Kozloff/University of Chicago Usage Restrictions News organizations may use this image in connection with reports about the research of Margaret Gardel, Jennifer Ross, and Patrick McCall. 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.