An electron is a tiny particle that carries a negative charge and is found floating around in atoms. It plays a crucial role in many aspects of physics and helps make up everything that we see in the world around us. Full definition
In the simplest setup, the size of the current reveals the density of electrons in the surface, allowing it to be mapped out. (sciencemag.org)
This picture shows a scanning electron microscope photo of red blood cells with these parasites embedded into their surface. (safarivet.com)
The focus is on protein detection in live versus fixed cells: determination of protein expression, localization, activity state, and the possibility for combination of fluorescent light microscopy with electron microscopy. (science.sciencemag.org)