Publications associées à Phéophytine

Pivotal role of the redox-active tyrosine in driving the water splitting catalyzed by photosystem II

Photosynthetic water oxidation is catalyzed by the Mn4Ca cluster in photosystem II (PSII). The nearby redox-active tyrosine (Y-Z) serves as a direct electron acceptor of the Mn4Ca cluster and it forms a low-barrier H-bond (LBHB) with a neighboring histidin ...

ROYAL SOC CHEMISTRY2020

Multihole water oxidation catalysis on haematite photoanodes revealed by operando spectroelectrochemistry and DFT

Michael Graetzel, Matthew Thomas Mayer, Yimeng Ma

Water oxidation is the key kinetic bottleneck of photoelectrochemical devices for fuel synthesis. Despite advances in the identification of intermediates, elucidating the catalytic mechanism of this multi-redox reaction on metal-oxide photoanodes remains a ...

NATURE PUBLISHING GROUP2020

On the comparison between differential vibrational spectroscopy spectra and theoretical data in the carboxyl region of photosystem II

Daniele Narzi, Leonardo Guidoni

Understanding the structural modification experienced by the Mn4CaO5 oxygen-evolving complex of photosystem II along the Kok-Joliot's cycle has been a challenge for both theory and experiments since many decades. In particular, differential infrared spectr ...

WILEY2019

Ultrafast dynamics of the photo-excited hemes b and c(n) in the cytochrome b(6)f complex

Adrien Alexis Paul Chauvet, Rachna Agarwal

The dynamics of hemes b and c(n) within the cytochrome b(6)f complex are investigated by means of ultrafast broad-band transient absorption spectroscopy. On the one hand, the data reveal that, subsequent to visible light excitation, part of the b hemes und ...

Royal Society of Chemistry2017

A Spotlight on the Compatibility between XFEL and Ab Initio Structures of the Oxygen Evolving Complex in Photosystem II

Daniele Narzi, Leonardo Guidoni

The Mn4CaO5 cluster of photosystem II promotes a crucial step in the oxygenic photosynthesis, namely, the water-splitting reaction. The structure of such cluster in the S-1 state of the Kok-Joliot's cycle has been recently resolved by femtosecond X-ray fre ...

Wiley-V C H Verlag Gmbh2017

Impact of molecular flexibility on the site energy shift of chlorophylls in Photosystem II

Daniele Narzi, Leonardo Guidoni, Marco Manzoli

Light harvesting from the Sun by antenna complexes surrounding the reaction center of Photosystem II represents the first step of the natural oxygenic photosynthesis performed by plants, algae and cyanobacteria. The excitation energy derived from the sunli ...

Elsevier Science Bv2017

Vibrational fingerprints of the Mn4CaO5 cluster in Photosystem II by mixed quantum-classical molecular dynamics

Daniele Narzi, Leonardo Guidoni

A detailed knowledge of the structures of the catalytic steps along the Kok-Joliot cycle of Photosystem II may help to understand the strategies adopted by this unique enzyme to achieve water oxidation. Vibrational spectroscopy has probed in the last decad ...

Elsevier Science Bv2016

Generating photocurrent by nanocomposites based on photosynthetic reaction centre protein

László Forró, Endre Horvath, Klara Hernadi, Emil Nyerki

An optoelectronic device, which converts light energy to electric potential, was designed and fabricated by using photosynthetic reaction centre (RC) proteins of purple bacterium Rhodobacter sphaeroides R-26, based on the structure and function of the dye ...

Wiley-V C H Verlag Gmbh2015

Charge Separation Pathways in a Highly Efficient Polymer:Fullerene Solar Cell Material

Natalie Renuka Banerji, Arun Aby Paraecattil

PBDTTPD is one of the best conjugated polymers for solar cell applications (up to 8.5% efficiency). We have investigated the dynamics of charge generation in the blend with fullerene (PCBM) and addressed highly relevant topics such as the role of bulk hete ...

Amer Chemical Soc2014

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Phéophytine

Pivotal role of the redox-active tyrosine in driving the water splitting catalyzed by photosystem II

Multihole water oxidation catalysis on haematite photoanodes revealed by operando spectroelectrochemistry and DFT

On the comparison between differential vibrational spectroscopy spectra and theoretical data in the carboxyl region of photosystem II

Ultrafast dynamics of the photo-excited hemes b and c(n) in the cytochrome b(6)f complex

A Spotlight on the Compatibility between XFEL and Ab Initio Structures of the Oxygen Evolving Complex in Photosystem II

Impact of molecular flexibility on the site energy shift of chlorophylls in Photosystem II

Vibrational fingerprints of the Mn4CaO5 cluster in Photosystem II by mixed quantum-classical molecular dynamics

Differential coral bleaching—Contrasting the activity and response of enzymatic antioxidants in symbiotic partners under thermal stress

Generating photocurrent by nanocomposites based on photosynthetic reaction centre protein

Charge Separation Pathways in a Highly Efficient Polymer:Fullerene Solar Cell Material

Graph Chatbot

Chattez avec Graph Search

Pivotal role of the redox-active tyrosine in driving the water splitting catalyzed by photosystem II

Multihole water oxidation catalysis on haematite photoanodes revealed by operando spectroelectrochemistry and DFT

Differential coral bleaching—Contrasting the activity and response of enzymatic antioxidants in symbiotic partners under thermal stress

Impact of molecular flexibility on the site energy shift of chlorophylls in Photosystem II

Ultrafast dynamics of the photo-excited hemes b and c(n) in the cytochrome b(6)f complex

On the comparison between differential vibrational spectroscopy spectra and theoretical data in the carboxyl region of photosystem II

Vibrational fingerprints of the Mn4CaO5 cluster in Photosystem II by mixed quantum-classical molecular dynamics

A Spotlight on the Compatibility between XFEL and Ab Initio Structures of the Oxygen Evolving Complex in Photosystem II

Generating photocurrent by nanocomposites based on photosynthetic reaction centre protein

Charge Separation Pathways in a Highly Efficient Polymer:Fullerene Solar Cell Material