Fluorescence imaging is a technique used to visualize and study biological samples by detecting the light emitted from fluorescent molecules. When these molecules are excited by a specific wavelength of light, they emit light at a longer wavelength, allowing researchers to observe structures and processes within cells and tissues. This method is widely used in fields like cell biology and medical research. The technique often involves labeling specific proteins or other cellular components with fluorescent dyes or tags. By using advanced microscopes, scientists can capture detailed images, helping them understand complex biological interactions and disease mechanisms. Fluorescence imaging is essential for advancements in diagnostic medicine and biotechnology.