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What is Confocal Fluorescence Microscopy?
Confocal fluorescence microscopy is a commonly used optical imaging method in biology, combining fluorescence imaging with confocal microscopy for increased optical resolution. This article will discuss the principles of fluorescence and confocal microscopes, and describe the stages of fluorophore selection and sample preparation.
Image Credit: Micha Weber / Shutterstock.com
What is fluorescence?
Fluorescence is the process by which a photon is absorbed, and another of slightly lower energy, and therefore longer wavelength, is subsequently emitted. Under normal circumstances, the electrons of a fluorophore (a molecule capable of fluorescence) are in a low-energy ground state, which when excited by interaction with an incident photon may be promoted to a higher energy level. ....

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