A microscopy technique that uses fluorescent labels to visualize specific components within specimens by exciting fluorophores with specific wavelengths of light and detecting their emission. It enables selective visualization of particular structures or molecules.
Combines 'fluorescence' from 'fluorspar' (the mineral where the phenomenon was first observed) and Latin 'fluere' (to flow), with 'microscopy.' The technique developed throughout the 20th century as fluorescent dyes and filters became more sophisticated.
Fluorescence microscopy is like painting with light - scientists can make specific parts of cells glow in brilliant colors while leaving everything else invisible! It's so versatile that you can watch proteins dance, see DNA repair itself, or track how diseases spread through tissue, all in real-time living color.
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