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All Articles Tagged As: photosynthesis
Researchers have used chemicals found in plants to replicate a key process in photosynthesis paving the way to a new approach that uses sunlight to split water into hydrogen and oxygen.
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 | Scientists mimic essence of plants' energy storage system ...> Full Article |
 | chemists see near-term promise in mimicking photosynthesis ...> Full Article |
Plants have an ambivalent relationship with light. They need it to live, but too much light leads to the increased production of high-energy chemical intermediates that can injure or kill the plant.
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Damage to plants seems to regulate its ability to trap energy from sunlight
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 | In a study of the molecular mechanisms by which plants protect themselves from oxidation damage should they absorb too much sunlight during photosynthesis, a team of researchers has discovered a molecular "dimmer switch" that helps control the flow of solar energy moving through the system of light harvesting proteins. This discovery holds important implications for the future design of artificial photosynthesis systems that could provide the world with a sustainable and secure source of energy. ...> Full Article |
 | Researchers report on the energy-transferring functions within the Fenna-Matthews-Olson photosynthetic light-harvesting protein, a pigment-protein complex in green sulfur bacteria that serves as a model system because it consists of only seven well-characterized pigment molecules ...> Full Article |
Scientists synthesise stable catalyst for water oxidation
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Research could lead to more efficient, cleaner hydrogen production
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In a technical advance that could allow researchers to watch cells as they act during the process of photosynthesis, scientists have developed a method that extends the power of fluorescence-mediated bio-imaging to see discrete pigments inside live cells of bacteria.
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Plants trees and algae do it. Even some bacteria and moss do it, but scientists have had a difficult time developing methods to turn sunlight into useful fuel. Now, Penn State researchers have a proof-of-concept device that can split water and produce recoverable hydrogen.
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 | If we wanted to create the ideal environmentally friendly energy source, it would be a fuel that is easy and economical to produce, and one that does not pollute the air when burned. That is exactly what researchers at ASU intend to develop in a new program that uses bacteria and sunlight to generate hydrogen, a clean fuel that produces no greenhouse gases. ...> Full Article |
 | Singlet oxygen, a byproduct of the photosynthetic process by which certain cells convert sunlight into energy, is a highly toxic and reactive substance that tears cells apart. Now scientists have become the first to solve the structure of a protein complex that protects these cells from singlet oxygen. The findings not only advance knowledge of how cells sense the presence of singlet oxygen, but also how they turn on critical genes to defend themselves from its effects. ...> Full Article |
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