What is electron microscopy?

Electron microscopy (EM) is a microscopy technique that uses a beam of accelerated electrons as a source of illumination. Since the wavelength of an electron can be up to 100,000 times shorter than that of visible light photons, electron microscopes have a higher resolving power than light microscopes and can reveal the structure of smaller objects. EM is used in various fields, including biology, medicine, materials science, and nanotechnology, to visualize and study structures at the nanometer scale, such as cells, viruses, materials, and crystalline structures. Common applications include imaging cellular components, analyzing the structure of materials, and diagnosing diseases.