Which microscopy method can achieve a resolution limit of less than 1 nanometer?

Transmission Electron Microscopy (TEM) is known for its exceptional ability to achieve a resolution limit of less than 1 nanometer. This is due to the nature of electrons having much shorter wavelengths than visible light, which allows for the imaging of structures at extremely small scales.

In TEM, a beam of electrons is transmitted through an ultra-thin sample. The interaction of the electrons with the sample provides detailed images of the internal structure at the atomic level, making it a powerful tool for researchers needing to study materials, including those involving asbestos fibers.

This high resolution is particularly important in various fields, such as materials science and biology, where understanding fine structural details can lead to significant insights into the properties and behavior of materials and biological specimens. Other microscopy techniques, while effective for larger structures, do not reach the same level of resolution; hence, they cannot visualize details on the atomic scale as TEM can.