Microgel Sphere in Action (image) University of Illinois at Urbana-Champaign Share Print E-Mail Caption Twenty-four hour time-elapsed video shows melanoma tumor cells of mice squeezing and rotating an elastic microgel sphere filled with fluorescent nanoparticles. Credit Video courtesy Ning Wang. Usage Restrictions Video may used in stories related to this press release. Credit is required. Video courtesy Ning Wang. Share Print E-Mail 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.