He was working with frozen samples of membrane proteins and spinning them around the magic angle to measure carbon - carbon distances and map out structural interactions. (sbgrid.org)
«By using frozen samples, you can screen donors ahead of time and establish a «stool bank,»» says Younger, the study's lead author. (sciencenewsforstudents.org)
It creates images by pumping a beam of electrons through multiple frozen samples containing millions of proteins. (discovermagazine.com)