Electron microscopy

a magnifying system capable of showing the interior or surface of a microscopic object by means of directed electron beams

Bending of electron beams due to electrostatic interactions with matter

type of microscopy which excludes non-scattered light

device

thumb|right|The ultrastructure of a single Bacterium|bacterial cell ([[Bacillus subtilis). The scale bar is 200 nm.]]

Patterns formed by scattering

process of decomposing gaseous molecules by an electron beam

technique of washing tissue specimens with a concentrated solution of a heavy metal salt and letting it dry

velocity filter for charged particles

type of electron microscopy

Ultramicrotomy is a method for cutting specimens into extremely thin slices, called ultra-thin sections, that can be studied and documented at different magnifications in an electron microscope such as a transmission electron microscope (TEM). It is used mostly for biological specimens, but sections of plastics and soft metals can also be prepared. For example, recently ultramicrotomy was used to make 2D material devices and use it for DNA sensing. The biological sections must be very thin because the 50 to 125 kV electrons of the standard electron microscope cannot pass through biologica