Cryo-electron microscopy images (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption These cryo-electron microscopy images show the multi-layered structures of the lipid nanoparticles that the scientists produced and studied. The microscopy was performed at the cryo-EM Research Center (CEMRC) in the Department of Biochemistry at the University of Wisconsin–Madison. Credit Michal Hammel/Berkeley Lab Usage Restrictions N/A License Original 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.