A microscope that uses electron source to magnify objects

Prof. Jones: “Exactly! As the name suggests, an electron microscope directs a beam of electrons instead of light. This shorter wavelength translates to a significantly higher resolution, making it possible to see the tiniest details inside tumor cells—or, in our case, T cells that have infiltrated the tumor environment.”

[She points to a figure demonstrating the path of a light source vs an electron gun]

From: By FDominec - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=3938464    

Prof. Jones: ‘We’ve also set up this lab with controlled temperature and minimal foot traffic to reduce vibrations. These are crucial steps in good EM practice. The slightest vibration can blur your images. Now, let’s talk about the sample sizes typically viewed with an electron microscope.’

What size samples can be visualized under an electron microscope?’