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Related Concept Videos

The Z-Scheme of Electron Transport in Photosynthesis01:34

The Z-Scheme of Electron Transport in Photosynthesis

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The light reactions of photosynthesis assume a linear flow of electrons from water to NADP+. During this process, light energy drives the splitting of water molecules to produce oxygen. However, oxidation of water molecules is a thermodynamically unfavorable reaction and requires a strong oxidizing agent. This is accomplished by the first product of light reactions: oxidized P680 (or P680+), the most powerful oxidizing agent known in biology. The oxidized P680 that acquires an electron from the...
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What is Photosynthesis?00:39

What is Photosynthesis?

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Photosynthesis is a multipart, biochemical process that occurs in plants as well as in some bacteria. It captures carbon dioxide and solar energy to produce glucose. Glucose stores chemical energy in the form of carbohydrates. The overall biochemical formula of photosynthesis is 6 CO2 + 6 H2O + Light energy → C6H12O6 + 6 O2. Photosynthesis releases oxygen into the atmosphere and is largely responsible for maintaining the Earth’s atmospheric oxygen content.
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Oxygenic Photosynthesis01:26

Oxygenic Photosynthesis

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Oxygenic photosynthesis is a fundamental process in which light energy is harnessed to drive the oxidation of water, leading to the production of molecular oxygen (O₂), adenosine triphosphate (ATP), and nicotinamide adenine dinucleotide phosphate (NADPH). This process is essential for sustaining aerobic life on Earth and is primarily carried out by cyanobacteria, algae, and plants. The core of oxygenic photosynthesis lies in the thylakoid membranes, where chlorophyll pigments facilitate...
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Light as Energy01:35

Light as Energy

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The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
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Photosystem II01:22

Photosystem II

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The multi-protein complex photosystem II (PS II) harvests photons and transfers their energy through its bound pigments to its reaction center, and ultimately to photosystem I (PSI) through the electron transport chain. The pigments responsible for caputirng the light energy in photosystems include chlorophyll a, chlorophyll b, and carotenoids.
The pigment molecules are arranged across  two photosystem domains — the antenna complex and the reaction center. The main aim of the pigment...
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Photosystems01:32

Photosystems

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Photosystems are multiprotein complexes that form the functional units of photosynthesis in plants, algae, and cyanobacteria. They are found embedded in the membrane of tiny sac-like structures called thylakoids placed inside the chloroplast.
Functioning of Photosystems
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Applied photosynthesis: An idea whose time has come.

Barry D Bruce1, Suleyman I Allakhverdiev2

  • 1Department of Biochemistry & Cellular and Molecular Biology, Department of Chemical and Biomolecular Engineering, Department of Microbiology, University of Tennessee, Knoxville, USA.

Biochimica Et Biophysica Acta. Bioenergetics
|November 21, 2024
PubMed
Summary
This summary is machine-generated.

Biohybrid devices merge biology and synthetic materials for sustainable solar energy. Photosynthetic organisms and nanomaterials are engineered for efficient, eco-friendly energy production and storage solutions.

Keywords:
Biohybrid devicesHydrogen productionNanomaterialsPhotosynthetic organismsProtein engineeringSolar energy conversion

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Area of Science:

  • Materials Science
  • Synthetic Biology
  • Nanomaterial Engineering
  • Renewable Energy Technologies

Background:

  • Biohybrid devices integrate biological components with synthetic materials for energy applications.
  • Photosynthetic mechanisms from diverse organisms (cyanobacteria, algae, purple bacteria, archaea) are repurposed for solar energy conversion.
  • Research focuses on harnessing solar energy for hydrogen production, photovoltaics, catalysis, and biosensing.

Discussion:

  • Advances in synthetic biology and nanomaterial fabrication enhance protein functionality and device stability.
  • Integration of bioengineered proteins and photosynthetic complexes optimizes light absorption and energy conversion.
  • Exploration of unique photoactive pigments, including reaction centers and light-harvesting proteins, is crucial.

Key Insights:

  • Biohybrid systems offer eco-friendly, high-efficiency alternatives to conventional solar technologies.
  • Nanoscale engineering improves the performance and resilience of biohybrid energy devices.
  • Protein engineering and selection of photoactive components are key to optimizing biohybrid device function.

Outlook:

  • Biohybrid devices hold significant promise for sustainable energy applications.
  • Photosynthetic organisms are positioned as critical components in innovative energy technologies.
  • Continued research in biohybrid systems could lead to breakthroughs in renewable energy production.