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Moth Eyes May Enhance Medical Imaging

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NEW YORK, July 3, 2012 — A new class of nanoscale materials modeled after a moth's eye could improve the light-capturing efficiency of x-ray machines and similar medical imaging devices. Like butterflies, moths have large compound eyes composed of many thousand ommatidia — structures made up of a primitive cornea and lens, connected by photoreceptor cells. However, unlike those of butterflies, moth eyes are remarkably antireflective, bouncing back very little of the light that strikes them. This adaptation makes the insect less visible to predators during their nocturnal flights. It is because of this...Read full article

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    Published: July 2012
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
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