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Related Concept Videos

The Antenna Complex01:15

The Antenna Complex

Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency can...
Photosystem II01:22

Photosystem II

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 molecules...
Photosystems01:32

Photosystems

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
Photosystems contain many pigment molecules, such as chlorophylls and carotenoids, arranged in a particular organization across two domains — the antenna complex and the reaction center. The main aim of the pigment molecules...
Photosystem I01:27

Photosystem I

Although structurally similar to photosystem II (PSII), photosystem I (PSI) is has a different electron supplier and electron acceptor.
Both these photosystems work in concert. An excited electron from PSII is relayed to PSI via an electron transport chain in the thylakoid membrane of the chloroplast, which is comprised of the carrier molecule plastoquinone, the dual-protein cytochrome complex, and plastocyanin. As electrons move between PSII and PSI, they lose energy and must be re-energized...
Anatomy of Chloroplasts01:07

Anatomy of Chloroplasts

Green algae and plants, including green stems and unripe fruit, harbor chloroplasts—the vital organelles where photosynthesis takes place. In plants, the highest density of chloroplasts is found in the mesophyll cells of leaves.
Photoreceptors and Plant Responses to Light02:00

Photoreceptors and Plant Responses to Light

Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.

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Related Experiment Video

Updated: May 25, 2026

Isolating and Incorporating Light-Harvesting Antennas from Diatom Cyclotella Meneghiniana in Liposomes with Thylakoid Lipids
11:28

Isolating and Incorporating Light-Harvesting Antennas from Diatom Cyclotella Meneghiniana in Liposomes with Thylakoid Lipids

Published on: August 28, 2018

Light-harvesting hybrid assemblies.

K Venkata Rao1, K K R Datta, Muthusamy Eswaramoorthy

  • 1Supramolecular Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O, Bangalore 560064, India.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|February 2, 2012
PubMed
Summary
This summary is machine-generated.

Researchers explore light-harvesting hybrids, mimicking photosynthesis for energy transfer. They detail synthesis strategies and address material processability challenges for device applications using self-assembly.

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In Vitro Reconstitution of Light-harvesting Complexes of Plants and Green Algae
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Published on: October 10, 2014

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Last Updated: May 25, 2026

Isolating and Incorporating Light-Harvesting Antennas from Diatom Cyclotella Meneghiniana in Liposomes with Thylakoid Lipids
11:28

Isolating and Incorporating Light-Harvesting Antennas from Diatom Cyclotella Meneghiniana in Liposomes with Thylakoid Lipids

Published on: August 28, 2018

In Vitro Reconstitution of Light-harvesting Complexes of Plants and Green Algae
11:55

In Vitro Reconstitution of Light-harvesting Complexes of Plants and Green Algae

Published on: October 10, 2014

Area of Science:

  • Materials Science
  • Photochemistry
  • Supramolecular Chemistry

Background:

  • Light-harvesting systems are crucial for energy conversion, with photosynthetic systems serving as a natural model.
  • Hybrid materials offer tunable properties by combining organic and inorganic components for light-harvesting applications.
  • Organic assemblies have been extensively studied for their energy transfer capabilities.

Purpose of the Study:

  • To introduce design concepts for constructing light-harvesting hybrid materials.
  • To compare the properties and structures of hybrid assemblies with organic counterparts.
  • To address challenges in hybrid material processability for device applications.

Main Methods:

  • Categorization of hybrid assembly synthesis into covalent, semicovalent, and noncovalent strategies.
  • Comparative analysis of structural features and properties between hybrid and organic assemblies.
  • Development of soft-hybrids via solution-state, noncovalent self-assembly.

Main Results:

  • Successful design and synthesis strategies for light-harvesting hybrids are presented.
  • Key differences and similarities between hybrid and organic light-harvesting systems are highlighted.
  • Soft-hybrids demonstrate potential for improved processability in device applications.

Conclusions:

  • Light-harvesting hybrids offer a promising platform for mimicking natural photosynthesis.
  • Noncovalent self-assembly provides a viable route to overcome processability issues in hybrid materials.
  • Further research into soft-hybrid materials is warranted for efficient energy transfer devices.