What is the fine-grained topic of the following text: “We’ve created the first fully synthetic material that can pass through a cell membrane without rupturing it, and we’ve found that order on the nanometer scale is necessary to provide this property,” said Francesco Stellacci, an associate professor in the Department of Materials Science and Engineering and co-leader of the work with Darrell Irvine, the Eugene Bell Career Development Associate Professor of Tissue Engineering. Only return the topic.
Creation of the first fully synthetic material that can pass through a cell membrane without rupturing it