Both electronic and vibrational coherences are involved in primary electron transfer in bacterial reaction center

Autor: Fei Ma, Elisabet Romero, Michael R. Jones, Vladimir I. Novoderezhkin, Rienk van Grondelle

Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)

Distinguishing electronic and vibrational coherences helps to clarify the near-unity efficiency of primary electron transfer in reaction centres. Here, the authors report their respective correlation with the electron transfer rate by comparing the 2

Externí odkaz: https://doaj.org/article/15a2ec0bda494d50b47a513f3dc3b2bd

Synchronization of opening and closing of two gramicidin A channels pulled together by a linker: possible relevance to channel clustering

Autor: Vladimir I. Novoderezhkin, Tatyana I. Rokitskaya, Elena A. Kotova, Yuri N. Antonenko

Publikováno v: Physical Chemistry Chemical Physics. 25:3752-3757

Here, we used the ideas of the theory of excitons to hypothesize about the mechanism of synchronous opening and closing of two membrane channels formed by laterally linked gramicidin A subunits.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be7782bbe419a5a7e187f549839dc2a0
https://doi.org/10.1039/d2cp04884a

The location of the low-energy states in Lhca1 favors excitation energy transfer to the core in the plant PSI-LHCI supercomplex

Autor: Vladimir I. Novoderezhkin, Roberta Croce

Publikováno v: Novoderezhkin, V I & Croce, R 2022, ' The location of the low-energy states in Lhca1 favors excitation energy transfer to the core in the plant PSI-LHCI supercomplex ', Photosynthesis Research, vol. 156, no. 1, pp. 59-74 . https://doi.org/10.1007/s11120-022-00979-8
Photosynthesis Research, 156(1), 59-74. Springer Netherlands

Lhca1 is one of the four pigment-protein complexes composing the outer antenna of plant Photosystem I-light-havesting I supercomplex (PSI-LHCI). It forms a functional dimer with Lhca4 but, differently from this complex, it does not contain 'red-forms

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4d9f8fee2dede7a6c7bfa57cc53bcd4
https://doi.org/10.1007/s11120-022-00979-8

Dynamic Stark Effect in Two-Dimensional Spectroscopy Revealing Modulation of Ultrafast Charge Separation in Bacterial Reaction Centers by an Inherent Electric Field

Autor: Rienk van Grondelle, Michael R. Jones, Vladimir I. Novoderezhkin, Long-Jiang Yu, Fei Ma, Elisabet Romero

Publikováno v: Ma, F, Romero, E, Jones, M R, Novoderezhkin, V I, Yu, L-J & van Grondelle, R 2021, ' Dynamic Stark Effect in Two-Dimensional Spectroscopy Revealing Modulation of Ultrafast Charge Separation in Bacterial Reaction Centers by an Inherent Electric Field ', The Journal of Physical Chemistry Letters, vol. 12, no. 23, 23, pp. 5526-5533 . https://doi.org/10.1021/acs.jpclett.1c01059
Ma, F, Romero, E, Jones, M R, Novoderezhkin, V I, Yu, L-J & Van Grondelle, R 2021, ' Dynamic Stark Effect in Two-Dimensional Spectroscopy Revealing Modulation of Ultrafast Charge Separation in Bacterial Reaction Centers by an Inherent Electric Field ', Journal of Physical Chemistry Letters, vol. 12, no. 23, pp. 5526-5533 . https://doi.org/10.1021/acs.jpclett.1c01059
Journal of Physical Chemistry Letters, 12(23), 5526-5533. American Chemical Society

© 2021 American Chemical Society.Despite extensive study, mysteries remain regarding the highly efficient ultrafast charge separation processes in photosynthetic reaction centers (RCs). In this work, transient Stark signals were found to be present

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a29167e36f85b6160b5b395c901d864
https://pubmed.ncbi.nlm.nih.gov/34096727

Complete mapping of energy transfer pathways in the plant light-harvesting complex Lhca4

Autor: Roberta Croce, Martijn Tros, Vladimir I. Novoderezhkin, Elisabet Romero, Rienk van Grondelle

Publikováno v: RECERCAT (Dipòsit de la Recerca de Catalunya)
Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Physical chemistry chemical physics : PCCP, 22(44), 25720-25729. The Royal Society of Chemistry
Tros, M, Novoderezhkin, V I, Croce, R, van Grondelle, R & Romero, E 2020, ' Complete mapping of energy transfer pathways in the plant light-harvesting complex Lhca4 ', Physical chemistry chemical physics : PCCP, vol. 22, no. 44, pp. 25720-25729 . https://doi.org/10.1039/d0cp03351k
Recercat. Dipósit de la Recerca de Catalunya
instname

The Lhca4 antenna complex of plant Photosystem I (PSI) is characterized by extremely red-shifted and broadened absorption and emission bands from its low-energy chlorophylls (Chls). The mixing of a charge-transfer (CT) state with the excited state ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a0da2642f96f3aa30a7b004c6a36ee4
https://hdl.handle.net/2072/378124