Berkeley Lab scientists have created the first computational model that simulates the light-harvesting activity of thousands of antenna proteins that would interact in the chloroplast of an actual leaf. The results point the way to improving the yields of food and fuel crops, and developing artificial photosynthesis technologies for next generation solar energy systems.
Berkeley Lab researchers are using the bacterium Moorella thermoacetica to perform photosynthesis and also to synthesize semiconductor nanoparticles in a hybrid artificial photosynthesis system for converting sunlight into valuable chemical products.
Berkeley Lab researchers using a bioinorganic hybrid approach to artificial photosynthesis have combined semiconducting nanowires with select microbes to create a system that produces renewable molecular hydrogen and uses it to synthesize carbon dioxide into methane, the primary constituent of natural gas.
Berkeley Lab researchers discovered that a photoprotective mechanism in cyanobacteria is triggered by an unprecedented, large-scale movement from one location to another of the carotenoid pigment within the Orange Carotenoid Protein.
Berkeley Lab researchers, working at the Molecular Foundry, have invented a technique called “CLAIRE” that extends the incredible resolution of electron microscopy to the non-invasive nanoscale imaging of soft matter, including biomolecules, liquids, polymers, gels and foams.
By combining biocompatible light-capturing nanowire arrays with select bacterial populations, a potentially game-changing new artificial photosynthesis system offers a win/win situation for the environment: solar-powered green chemistry using sequestered carbon dioxide.
Two Berkeley Lab scientists, climate scientist William Collins and chemist Heinz Frei, have been named Fellows of the American Association for the Advancement of Science (AAAS) for 2014.
New experimental results have revealed the critical influence of the electronic and geometric effects in the carbon dioxide reduction reaction.
Using the world’s most powerful x-ray laser, an international collaboration led by Berkeley Lab researchers took femtosecond “snapshots” of water oxidation in photosystem II, the only known biological system able to harness sunlight for splitting the water molecule. The results should help advance the development of artificial photosynthesis for clean, green and renewable energy.
Berkeley Lab researchers have developed a new technique called two-dimensional electronic-vibrational spectroscopy that can be used to study the interplay between electrons and atomic nuclei during a photochemical reaction. Photochemical reactions are critical to a wide range of natural and technological phenomena, including photosynthesis, vision, nanomaterials and solar energy.