
Transmission electron microscopy
Transmission electron microscopy (TEM) is a technique that uses a beam of electrons to create detailed images of very small structures, much smaller than what light microscopes can see. The electrons pass through a thin sample, and based on how they are scattered or transmitted, a computer reconstructs an image showing the sample’s internal details at the nanometer scale. TEM is widely used in scientific and medical research to explore the ultrastructure of cells, viruses, and materials, providing high-resolution insights that help deepen our understanding of complex tiny systems.