Sentences with phrase «photosynthetic systems»

«The operating principles of artificial photosynthetic systems are similar to redox flow batteries and fuel cells in that charge - carriers need to be transported to electrodes, reactants need to be fed to catalytic centers, products need to be extracted, and ionic transport both from the electrolyte to catalytic centers and across channels needs to occur,» Ager says.

To address these challenges, the Molecular and Nanoscale Interfaces Project aims to couple light absorbers, catalysts, and half - reactions for optimal control of the rate, yield, and energetics of electron and proton flow at the nanoscale, so that complete macroscale artificial photosynthetic systems can achieve maximum conversion of solar photon energy into the chemical energy of a fuel.

The innovative aspect of this activity was the notion that the concept of macroscopic devices could be extended to the molecular level, and that it was possible to design supramolecular systems that, upon stimulation with external energy stimuli such as UV / Visible light, are capable of performing a variety of specific functions: (i) systems for information processing (e.g., wires, switches, antennas, plug / socket systems, extension cables, memories, logic gates, encoder / decoder, rudimentary neuron - like systems), (ii) devices that when powered by chemical energy or electrochemical energy or by light exhibit machine - like behavior (e.g., piston / cylinder systems, shuttles, lifts, rotary rings, dendritic photo - switchable boxes), and (iii) components for artificial photosynthetic systems.

This is simplest of all types of photosynthetic systems, Schulten says.

«So basically, the idea is that we hijack a portion of the energy produced by the microalgae from their photosynthetic systems.

MacDonnell also has worked on developing new photocatalysts for hydrogen generation, with the goal of creating an artificial photosynthetic system which uses solar energy to split water molecules into hydrogen and oxygen.

Another innovation of FLEX is its ability to measure fluorescence associated with two different steps in the photosynthetic system — one in the red and one in the infrared.

Millet is a so - called C4 plant, which has a very efficient photosynthetic system for capturing carbon dioxide, whereas most other plants that grow in northern China are less efficient C3 plants.

«Any photosynthetic system on Europa would have to live at a depth removed from the high radiation bombarding the ice surface and still get light,» Baross says.

The discovery of this artificial photosynthetic system, however, is a victory in the fight against global warming.

In an artificial photosynthetic system, the oxidation of water molecules into oxygen, electrons and protons (hydrogen ions) provides the electrons needed to produce liquid fuels from carbon dioxide and water.

Not exact matches

In natural systems like plants and photosynthetic bacteria, the spatial organization of densely packed chromophores is vital for efficient, directed energy transfer.

They are designing an artificial system that mimics how plants and other photosynthetic organisms use sunlight to convert CO2 and water into molecules that humans can later use for fuel.

The methodology is demonstrated on two model systems: the time - dependent spontaneous dissociation of photosynthetic light - harvesting antenna complexes and direct observation of DNA strands binding and unbinding in solution.

«Biofeedback system designed to control photosynthetic lighting: System helps lights adapt to plants» needs in controlled environment agriculture.&system designed to control photosynthetic lighting: System helps lights adapt to plants» needs in controlled environment agriculture.&System helps lights adapt to plants» needs in controlled environment agriculture.»

«The biofeedback system successfully maintained a wide range of ETR values in different species, while it also is capable of distinguishing between conversion of light into heat and damage to the photosynthetic machinery as causes for decreases in light use efficiency,» the authors said.

As both an «electrograph» (meaning it can undergo direct electron transfers from an electrode), and an «acetogen» (meaning it can direct nearly 90 - percent of its photosynthetic products towards acetic acid), M. thermoacetica serves as the ideal model organism for demonstrating the capabilities of this hybrid artificial photosynthesis system.

Synthetic genomics may yield microorganisms with novel capabilities, photosynthetic organisms able to generate valuable products directly from CO2, biological systems that increase recovery rates of subsurface hydrocarbons, or advanced plant feedstocks.

As I near the end of my life, I am amazed at how much power, technology, wealth and consumption humanity has acquired, and that has transformed our lives while at the same time undermining the very life support systems on which our existence and well - being depend — air, water, soil and food, photosynthetic activity and biodiversity.

Scientists with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley have created a hybrid system of semiconducting nanowires and bacteria that mimics the natural photosynthetic process by which plants use the energy in sunlight to synthesize carbohydrates from carbon dioxide and water.

Evolution has resulted in photosynthetic pathways that are optimized systems engineered down to the quantum level.