The words contained in this file might help you see if this file matches what you are looking for:

...Sir william dunn school of pathology biological sample preparation for electron microscopy anna pielach bioimaging facility transmission tem arabidopsis root tip cell jeol e johnson basic methods workshop specimen requirements stable in the vacuum well preserved internal structure dense staining very thin eg nm particulate samples can be stained mouse heart thick resin embedded tissue and viewed quickly mm wide sections on a grid cells require extensive cardiac scale bar m tecnai negative coat grids with plastic film carbon apply proteins viruses dna stain heavy metal solution uranium salts blot dry view bacterial protein uranyl acetate tobacco mosaic virus negatively sodium silicotungstate overview http www research utah edu advanced education micro index html primary fixation stops cellular processes aims to preserve as close possible its natural state characteristics good fixative permeates readily acts is irreversible does not cause artifacts include chemical aldehydes cryo liquid ...