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Green fluorescent proteins (GFPs) in eppendorf tubes glow green because they have absorbed exitation light. Credit: Juan Carlos Fonseca Mata Green fluorescent proteins (GFPs) in eppendorf tubes glow ...

Human vision relies on light. After reflecting off surfaces, light enters into the eyes and travels through the cornea and pupil to produce an image on the retina. The eye is sensitive to a broad ...

An international collaboration of researchers developed two new complementary approaches for versatile but precise light intensity measurements in fluorescence imaging systems. Accurate measurements ...