Coffee as a Staining Agent Substitute in Electron Microscopy

Researchers have proven that espresso is a favourable alternative to the highly toxic and radioactive uranyl acetate in the analysis of biological samples

12-Jan-2026 - To ensure that the tissue structures of biological samples are easily recognisable under the electron microscope, they are treated with a staining agent. The standard staining agent for this is uranyl acetate. However, some laboratories are not allowed to use this highly toxic and radioactive ...