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Green Bacteria Harvests Light

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UNIVERSITY PARK, Pa., May 5, 2009 – The structure of chlorophyll molecules in green bacteria that are responsible for harvesting light energy have been determined by a team of international scientists. This discovery could one day be used to build artificial photosynthetic systems, like those that convert solar energy to electrical energy. The scientists found that the chlorophylls are highly efficient at harvesting light energy. "We found that the orientation of the chlorophyll molecules make green bacteria extremely efficient at harvesting light," said Donald Bryant, Ernest C. Pollard professor of biotechnology at...Read full article

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    Published: May 2009
    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.
    nanotube
    A nanotube, also known as a nanotubule or simply a tube-like structure, is a nanoscale cylindrical structure composed of various materials, including carbon, boron nitride, or other compounds. Nanotubes have unique physical and chemical properties due to their small size and specific atomic arrangement, making them of significant interest in various scientific and technological fields. One of the most well-known types of nanotubes is the carbon nanotube (CNT), which is composed of carbon...
    photon
    A quantum of electromagnetic energy of a single mode; i.e., a single wavelength, direction and polarization. As a unit of energy, each photon equals hn, h being Planck's constant and n, the frequency of the propagating electromagnetic wave. The momentum of the photon in the direction of propagation is hn/c, c being the speed 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...
    x-ray crystallography
    The study of the arrangement of atoms in a crystal by means of x-rays.
    Basic ScienceBiophotonicschlorophyllchlorosomescry-electron microscopyDonald Bryantenergygreen bacteriagreen photonicsGroningen Biomolecular Sciences and Biotechnology Instituteharvesting lightharvesting light energyhot springsLeiden Institute of Chemistrylight energyMax Planck InstituteMicroscopymutant bacteriumnanonanotubeNews & FeaturesNMR spectroscopyPenn StatephotonphotonicsphotosynthesisSolar Energysolid-state nuclear magnetic resonance spectroscopyUS Department of Energyx-ray crystallography

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