Two groups at Hamamtsu and Tohoku University have developed a biocompatible film obtained by plasma polymerization which protects life samples under high vaccum and allows the observation of life processes under an electron microscope.
Yasuharu TAKAKU et al., doi: 10.1073/pnas.1221341110 PNAS April 15, 2013
New plasma-polymerized films (“nanosuits”) permit observation of life processes under an EM