The 2010 National Medal Science to Jacqueline K. Barton, California Institute of Technology, for discovery of a new property of the DNA helix long-range electron transfer, and for showing that electron transfer depends upon stacking of the base pairs and DNA dynamics.

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The process of disassembly liberates chlorophyll from a molecular production-line called the electron-transfer system.

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The advance provides evidence to support a controversial idea, called multiple-exciton generation (MEG), which theorizes that it is possible for an electron that has absorbed light energy, called an exciton, to transfer that energy to more than one electron, resulting in more electricity from the same amount of absorbed light.

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