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Photoswitch Paralyzes Animals

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WASHINGTON, D.C., Nov. 23, 2009 – An internal on-off “switch” that paralyzes animals when exposed to a beam of ultraviolet light has been developed by a team of scientists in Canada. The animals stay paralyzed even when the light is turned off. When exposed to ordinary light, the animals become unparalyzed and wake up. The study, which appears in the Journal of the American Chemical Society (JACS), is the first demonstration of such a light-activated switch in animals. This tiny worm became temporarily paralyzed when scientists fed it a light-sensitive material, or “photoswitch,” and then exposed it to ultraviolet...Read full article

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    Published: November 2009
    Glossary
    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...
    BiophotonicsC. elegansdithienyletheneLight Sourceslight-sensitive materialsNeil BrandaNews & Featuresparalyzed American Chemical SocietyphotodynamicphotonicsphotoreactionsphotoswitchesResearch & TechnologyUV light

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