Ionic Liquids for biological SEM and FIB / SEM

Abstract

Ionic liquids are low‐melting salts which are fluid at room temperature. They show a very low vapor pressure and are therefore persisting as liquids under the high vacuum conditions in an electron microscope. They are electrical conductive as well. The ionic liquids tested are mixable with water, thus solutions can be easily diluted to suitable viscosities respectively concentrations.