Caption: This beautiful pattern of wrinkles unexpectedly arose after University of Wisconsin-Madison biochemistry graduate student Jenna Eun grafted a small sheet of water-loving "hydrogel" onto the top of another material and added water. While the hydrogel absorbed the liquid and expanded, the underlying material did not, putting strain on the hydrogel and causing it to buckle. Eun's photograph, taken under a microscope, won second place in the 2008 Science and Engineering Visualization Challenge and appeared in the Sept. 26, 2008 issue of Science magazine.
Photo by: Jenna Eun
Caption: Jenna Eun, a biochemistry graduate student at the University of Wisconsin-Madison, is pictured on Sept. 22, 2008.
Photo by: Robin Davies, Information Technology Media Center in the Department of Biochemistry
Date: September 2008