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Updated: Jul 9, 2025

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
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阳光的一口气:通过功能分子架构的氧化光合作用

Thomas Gobbato1, Giulia Alice Volpato1, Andrea Sartorel1

  • 1Department of Chemical Sciences, University of Padova via Marzolo 1 35131 Padova Italy andrea.sartorel@unipd.it marcella.bonchio@unipd.it.

Chemical science
|November 29, 2023
PubMed
概括

人工光合作用模仿自然过程,将光转化为化学能量,用于清洁的太阳能燃料. 这项研究的重点是优化分子架构,以高效的氧化水和氧气生产,以自然量子体为灵感.

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The Z-Scheme of Electron Transport in Photosynthesis

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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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...
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Although structurally similar to photosystem II (PSII), photosystem I (PSI) is has a different electron supplier and electron acceptor.
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Reaction centers are pigment-protein complexes that initiate energy conversion from photons to chemical entities. Therefore, photochemical reaction center is a more appropriate term that describes these complexes. The Nobel laureates Robert Emerson and William Arnold provided the first experimental evidence of photochemical reaction centers by demonstrating the participation of nearly 2,500 chlorophyll molecules for the release of just one molecule of oxygen. Despite thousands of photosynthetic...
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Broadly, there are two main categories of organisms based on their modes of nutrition — autotrophs and...
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