Because the wavelength of electrons is much smaller than that of light, the resolution attainable for TEM images is orders of magnitude finer than that from a light microscope. Thus, TEMs can reveal the finest details of internal structure. Magnifications of 2000 to 450,000 X are routinely obtained for many biological and non-biological samples.
Materials to be examined by TEM must be specially prepared to allow electron transmission through plastic-embedded thin sections of the sample. For biological samples, cell structure and morphology is commonly determined while the localization of antigens or other specific components within cells is readily undertaken using specialized preparative techniques. Characterization of non-biological materials such as nanoparticles and virus particles, bacterial components and macromolecular structures are routinely performed.
Our JEM 1230 is fitted with a biological pole piece to give high contrast images that can be recorded on film for prints and by a CCD digital camera for real time viewing.