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Teledyne DALSA - Linea HS2 11/24 LB

Blue Bananas Linked to Cell Death

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INNSBRUCK, Austria, & NEW YORK, Sept. 10, 2009 – Bright blue luminescent rings found under UV light on the peels of very ripe bananas hold promise for studying how organisms rid themselves of dying cells, according to chemists in the US and Austria. As bananas age, the chlorophyll in their peels breaks down into particles called FCCs (fluorescent chlorophyll catabolites). Since these glowing particles occur in close proximity to dying tissue, they could enable the study of programmed cell death. (Image: Zina Deretsky, National Science Foundation)Nicholas Turro of Columbia University in New York, Bernhard Krautler of the Institute of...Read full article

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    Published: September 2009
    Glossary
    black light
    Radiation from the invisible (usually ultraviolet) region of the spectrum.
    light
    Electromagnetic radiation detectable by the eye, ranging in wavelength from about 400 to 750 nm. In photonic applications light can be considered to cover the nonvisible portion of the spectrum which includes the ultraviolet and the infrared.
    photochemistry
    The study of chemical reactions stimulated by the properties of light.
    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...
    ultraviolet
    That invisible region of the spectrum just beyond the violet end of the visible region. Wavelengths range from 1 to 400 nm.
    white light
    Light perceived as achromatic, that is, without hue.
    bananaBasic ScienceBernhard KrautlerBiophotonicsblack lightblue lightcancercatabolitescell deathcellschlorophyllColumbiadyingfluorescentImagingInnsbrucklightluminscentmoleculesNews & FeaturesNicholas TurroorganismsphotochemistryphotonicsPNASResearch & TechnologyripeskintissueultravioletUVwhite light

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