Latest Light reactions Stories

Spinach Could Lead To Alternative Energy Stronger Than Popeye
2014-07-28 03:13:17

Elizabeth Gardner, Purdue University Spinach gave Popeye super strength, but it also holds the promise of a different power for a group of scientists: the ability to convert sunlight into a clean, efficient alternative fuel. Purdue University physicists are part of an international group using spinach to study the proteins involved in photosynthesis, the process by which plants convert the sun’s energy into carbohydrates used to power cellular processes. “The proteins we study...

Vibrations Enhance Photosynthesis Efficiency Deep Within Spinach Leaves
2014-07-14 03:04:33

Nicole Casal Moore, University of Michigan Biophysics researchers at the University of Michigan have used short pulses of light to peer into the mechanics of photosynthesis and illuminate the role that molecule vibrations play in the energy conversion process that powers life on our planet. The findings could potentially help engineers make more efficient solar cells and energy storage systems. They also inject new evidence into an ongoing "quantum biology" debate over exactly how...

Researchers Develop Novel Method To Observe Mysterious Photosynthesis Process
2014-07-10 13:21:26

Brett Smith for redOrbit.com - Your Universe Online In the pursuit of a renewable energy source, scientists have been trying to understand the exact mechanism behind photosynthesis, and now a large team of scientists has successfully captured the detailed “snapshots” of the process using a powerful laser, according to a report in Nature Communications. “An effective method of solar-based water-splitting is essential for artificial photosynthesis to succeed but developing such a...

Photosynthetic Megacomplex Studied By Scientists
2013-11-29 06:52:19

Washington University in St. Louis Scientists able to study a photosynthetic complex -- arguably the most important bit of organic chemistry on the planet -- in its complete functioning state When sunlight strikes a photosynthesizing organism, energy flashes between proteins just beneath its surface until it is trapped as separated electric charges. Improbable as it may seem these tiny hits of energy eventually power the growth and movement of all plants and animals. They are literally...

Manganese Oxidation Played Key Role In Formation Of Oxygen On Earth
2013-06-27 07:25:47

April Flowers for redOrbit.com - Your Universe Online Oxygen is a necessary component for the survival of most terrestrial life on Earth. The planet´s atmosphere, however, did not always contain this life-sustaining substance. How and when oxygenic photosynthesis — the process responsible for producing oxygen on Earth through the splitting of water molecules — first began has been considered one of the great science mysteries of our planet. A new study, led by...

Quantum Secret In Photosynthesis Uncovered
2013-06-21 11:20:36

ICFO-The Institute of Photonic Sciences The efficient conversion of sunlight into useful energy is one of the challenges which stand in the way of meeting the world's increasing energy demand in a clean, sustainable way without relying on fossil fuels. Photosynthetic organisms, such as plants and some bacteria, have mastered this process: In less than a couple of trillionths of a second, 95 percent of the sunlight they absorb is whisked away to drive the metabolic reactions that provide...

New Insights Could Lead To Better Catalysts For Water Splitting
2013-03-29 10:47:24

California Institute of Technology Chemists at the California Institute of Technology (Caltech) and the Lawrence Berkeley National Laboratory believe they can now explain one of the remaining mysteries of photosynthesis, the chemical process by which plants convert sunlight into usable energy and generate the oxygen that we breathe. The finding suggests a new way of approaching the design of catalysts that drive the water-splitting reactions of artificial photosynthesis. "If we want to...

Researchers Watch Photosynthesis Catalyst In Action
2013-02-15 16:11:08

Lee Rannals for redOrbit.com - Your Universe Online Researchers at Stanford University and the Department of Energy's (DOE) SLAC National Accelerator Laboratory used an X-ray laser to get a glimpse of photosynthesis in action. Using the laser, they were able to look at the structure and chemical behavior of a natural catalyst involved in photosynthesis. "This method opens up the way to study changes going on in the catalytic cycle of the water oxidation in nature," Junko Yano, a chemist...

Photosynthesis - The Last Link In The Chain
2013-01-05 05:45:05

April Flowers for redOrbit.com - Your Universe Online For almost three decades, scientists have tried to identify a particular enzyme involved in regulating electron transport during photosynthesis. Now, a research team from Ludwig Maximilians Universitat (LMU) has found the missing link, which turns out to be not so new. All life on Earth is sustained by photosynthesis, a sunlight powered process that provides energy-rich compounds and the molecular oxygen that higher organisms depend...

2012-07-03 10:24:17

Research on the Water Oxidation Reaction in Plants and Bacteria Helps Solve an Important Piece of the Solar Energy Conversion Puzzle; Represents a Major Step Toward a New Generation of Photovoltaics New research led by chemists in the Baruch ´60 Center for Biochemical Solar Energy Research at Rensselaer Polytechnic Institute is seeking to detail the individual steps of highly efficient reactions that convert sunlight into chemical energy within plants and bacteria. In a paper...

Word of the Day
  • A large punch-bowl of the eighteenth century, usually of silver and with a movable rim, and decorated with flutings and a scalloped edge. It was also used for cooling and carrying wine-glasses.
  • A kind of cotton handkerchief having white spots on a colored ground, the spots being produced by a chemical which discharges the color.
This word is possibly named after Monteith (Monteigh), 'an eccentric 17th-century Scotsman who wore a cloak scalloped at the hem.'