1
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Kosumi D, Bandou-Uotani M, Kato S, Kawakami K, Yonekura K, Kamiya N. Reinvestigation on primary processes of PSII-dimer from Thermosynechococcus vulcanus by femtosecond pump-probe spectroscopy. PHOTOSYNTHESIS RESEARCH 2024; 159:79-91. [PMID: 38363474 DOI: 10.1007/s11120-024-01076-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 01/09/2024] [Indexed: 02/17/2024]
Abstract
Cyanobacterial photosynthetic apparatus efficiently capture sunlight, and the energy is subsequently transferred to photosystem I (PSI) and II (PSII), to produce electrochemical potentials. PSII is a unique membrane protein complex that photo-catalyzes oxidation of water and majorly contains photosynthetic pigments of chlorophyll a and carotenoids. In the present study, the ultrafast energy transfer and charge separation dynamics of PSII from a thermophilic cyanobacterium Thermosynechococcus vulcanus were reinvestigated by femtosecond pump-probe spectroscopic measurements under low temperature and weak intensity excitation condition. The results imply the two possible models of the energy transfers and subsequent charge separation in PSII. One is the previously suggested "transfer-to-trapped limit" model. Another model suggests that the energy transfers from core CP43 and CP47 antennas to the primary electron donor ChlD1 with time-constants of 0.71 ps and 3.28 ps at 140 K (0.17 and 1.33 ps at 296 K), respectively and that the pheophytin anion (PheoD1-) is generated with the time-constant of 43.0 ps at 140 K (14.8 ps at 296 K) upon excitation into the Qy band of chlorophyll a at 670 nm. The secondary electron transfer to quinone QA: PheoD1-QA → PheoD1QA- is observed with the time-constant of 650 ps only at 296 K. On the other hand, an inefficient β-carotene → chlorophyll a energy transfer (33%) occurred after excitation to the S2 state of β-carotene at 500 nm. Instead, the carotenoid triplet state appeared in an ultrafast timescale after excitation at 500 nm.
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Affiliation(s)
- Daisuke Kosumi
- Institute of Industrial Nanomaterials, Kumamoto University, 2-39-1 Kurokami, Chuo-Ku, Kumamoto, 860-8555, Japan.
| | - Miki Bandou-Uotani
- School of Graduate Studies, The Open University of Japan, 2-11 Wakaba, Mihama-Ku, Chiba, 261-8586, Japan
- Division of Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-Ku, Kumamoto, 860-8555, Japan
| | - Shunya Kato
- Department of Physics, Faculty of Science, Kumamoto University, 2-39-1 Kurokami, Chuo-Ku, Kumamoto, 860-8555, Japan
| | - Keisuke Kawakami
- Biostructual Mechanism Laboratory, RIKEN, SPring-8 Center, 1-1-1, Kouto, Sayo, Hyougo, 679-5148, Japan.
| | - Koji Yonekura
- Biostructual Mechanism Laboratory, RIKEN, SPring-8 Center, 1-1-1, Kouto, Sayo, Hyougo, 679-5148, Japan
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai, 980-8577, Japan
| | - Nobuo Kamiya
- The OCU Research Center for Artificial Photosynthesis, Osaka Metropolitan University, 3-3-138Sumiyoshi-Ku, SugimotoOsaka City, Osaka, 558-8585, Japan
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2
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Liu N, Zhang Y, Niu K, Lu F, Zhong D. Optical Control of Crossing the Conical Intersection in β-Carotene. J Phys Chem Lett 2023; 14:9215-9221. [PMID: 37811837 DOI: 10.1021/acs.jpclett.3c01932] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Optical control of dynamic processes has been challenging yet has only been demonstrated in several chemical and biological systems. The control of a reaction passing the widely present conical intersection has not been realized. Here, we modulated the phase of the excitation pulse to control the dynamics of β-carotene through accessing the conical intersection (CI). We observed different dynamics in 110-220 fs into the CI and the consecutive process in 400-600 fs through another CI by various chirped excitation pulses. We successfully controlled those ultrafast wavepacket dynamics passing the CIs on the femtosecond time scales. The method developed here can be used to control a various of ultrafast chemical and biological reactions through the CI(s).
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Affiliation(s)
| | | | | | | | - Dongping Zhong
- Department of Physics, Department of Chemistry and Biochemistry, and Program of Biophysics, Program of Chemical Physics, and Program of Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
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3
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Kosumi D, Kusumoto T, Hashimoto H. Unique ultrafast excited states dynamics of artificial short-polyene carotenoid analog 2-(all-trans-β-ionylideneetinylidene)-indan-1,3-dione. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Uragami C, Sato H, Yukihira N, Fujiwara M, Kosumi D, Gardiner AT, Cogdell RJ, Hashimoto H. Photoprotective mechanisms in the core LH1 antenna pigment-protein complex from the purple photosynthetic bacterium, Rhodospirillum rubrum. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112628] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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5
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Yu J, Tan LM, Kawakami T, Wang P, Fu LM, Wang-Otomo ZY, Zhang JP. Cooperative Photoprotection by Multicompositional Carotenoids in the LH1 Antenna from a Mutant Strain of Rhodobacter sphaeroides. J Phys Chem B 2018; 122:8028-8036. [DOI: 10.1021/acs.jpcb.8b06080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jie Yu
- Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Li-Ming Tan
- Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | | | - Peng Wang
- Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Li-Min Fu
- Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | | | - Jian-Ping Zhang
- Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
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6
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Excited-state dynamics of 3,3′-dihydroxyisorenieratene and (3R,3′R)-zeaxanthin: Observation of vibrationally hot S0 species. Arch Biochem Biophys 2018; 646:137-144. [DOI: 10.1016/j.abb.2018.03.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/13/2018] [Accepted: 03/26/2018] [Indexed: 11/19/2022]
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7
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Hashimoto H, Uragami C, Yukihira N, Gardiner AT, Cogdell RJ. Understanding/unravelling carotenoid excited singlet states. J R Soc Interface 2018; 15:20180026. [PMID: 29643225 PMCID: PMC5938589 DOI: 10.1098/rsif.2018.0026] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 03/16/2018] [Indexed: 11/12/2022] Open
Abstract
Carotenoids are essential light-harvesting pigments in natural photosynthesis. They absorb in the blue-green region of the solar spectrum and transfer the absorbed energy to (bacterio-)chlorophylls, and thus expand the wavelength range of light that is able to drive photosynthesis. This process is an example of singlet-singlet excitation energy transfer, and carotenoids serve to enhance the overall efficiency of photosynthetic light reactions. The photochemistry and photophysics of carotenoids have often been interpreted by referring to those of simple polyene molecules that do not possess any functional groups. However, this may not always be wise because carotenoids usually have a number of functional groups that induce the variety of photochemical behaviours in them. These differences can also make the interpretation of the singlet excited states of carotenoids very complicated. In this article, we review the properties of the singlet excited states of carotenoids with the aim of producing as coherent a picture as possible of what is currently known and what needs to be learned.
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Affiliation(s)
- Hideki Hashimoto
- Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Chiasa Uragami
- Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Nao Yukihira
- Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Alastair T Gardiner
- Institute of Molecular, Cell and Systems Biology, College of Medical Veterinary and Life Sciences, University of Glasgow, University Avenue, Glasgow G12 8QQ, UK
| | - Richard J Cogdell
- Institute of Molecular, Cell and Systems Biology, College of Medical Veterinary and Life Sciences, University of Glasgow, University Avenue, Glasgow G12 8QQ, UK
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8
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Yu J, Fu LM, Yu LJ, Shi Y, Wang P, Wang-Otomo ZY, Zhang JP. Carotenoid Singlet Fission Reactions in Bacterial Light Harvesting Complexes As Revealed by Triplet Excitation Profiles. J Am Chem Soc 2017; 139:15984-15993. [DOI: 10.1021/jacs.7b09809] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jie Yu
- Department
of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Li-Min Fu
- Department
of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Long-Jiang Yu
- Faculty
of Science, Ibaraki University, Mito 310-8512, Japan
- Department
of Biology, Faculty of Science, Okayama University, Okayama 700-8530, Japan
| | - Ying Shi
- Department
of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Peng Wang
- Department
of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | | | - Jian-Ping Zhang
- Department
of Chemistry, Renmin University of China, Beijing 100872, P. R. China
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9
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Niedzwiedzki DM, Swainsbury DJK, Martin EC, Hunter CN, Blankenship RE. Origin of the S* Excited State Feature of Carotenoids in Light-Harvesting Complex 1 from Purple Photosynthetic Bacteria. J Phys Chem B 2017; 121:7571-7585. [PMID: 28719215 DOI: 10.1021/acs.jpcb.7b04251] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
This spectroscopic study investigates the origin of the transient feature of the S* excited state of carotenoids bound in LH1 complexes from purple bacteria. The studies were performed on two RC-LH1 complexes from Rba. sphaeroides strains that bound carotenoids with different carbon-carbon double bond conjugation N, neurosporene (N = 9) and spirilloxanthin (N = 13). The S* transient spectral feature, originally associated with an elusive and optically silent excited state of spirilloxanthin in the LH1 complex, may be successfully explained and mimicked without involving any unknown electronic state. The spectral and temporal characteristics of the S* feature suggest that it is associated with triplet-triplet annihilation of carotenoid triplets formed after direct excitation of the molecule via a singlet fission mechanism. Depending on pigment homogeneity and carotenoid assembly in the LH1 complex, the spectro-temporal component associated with triplet-triplet annihilation may simply resolve a pure T-S spectrum of a carotenoid. In some cases (like spirilloxanthin), the T-S feature will also be accompanied by a carotenoid Stark spectrum and/or residual transient absorption of minor carotenoid species bound into LH1 antenna complex.
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Affiliation(s)
| | - David J K Swainsbury
- Department of Molecular Biology and Biotechnology, University of Sheffield , Sheffield S10 2TN, United Kingdom
| | - Elizabeth C Martin
- Department of Molecular Biology and Biotechnology, University of Sheffield , Sheffield S10 2TN, United Kingdom
| | - C Neil Hunter
- Department of Molecular Biology and Biotechnology, University of Sheffield , Sheffield S10 2TN, United Kingdom
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10
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Balevičius V, Abramavicius D, Polívka T, Galestian
Pour A, Hauer J. A Unified Picture of S* in Carotenoids. J Phys Chem Lett 2016; 7:3347-3352. [PMID: 27509302 PMCID: PMC5011297 DOI: 10.1021/acs.jpclett.6b01455] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 08/10/2016] [Indexed: 05/29/2023]
Abstract
In π-conjugated chain molecules such as carotenoids, coupling between electronic and vibrational degrees of freedom is of central importance. It governs both dynamic and static properties, such as the time scales of excited state relaxation as well as absorption spectra. In this work, we treat vibronic dynamics in carotenoids on four electronic states (|S0⟩, |S1⟩, |S2⟩, and |Sn⟩) in a physically rigorous framework. This model explains all features previously associated with the intensely debated S* state. Besides successfully fitting transient absorption data of a zeaxanthin homologue, this model also accounts for previous results from global target analysis and chain length-dependent studies. Additionally, we are able to incorporate findings from pump-deplete-probe experiments, which were incompatible to any pre-existing model. Thus, we present the first comprehensive and unified interpretation of S*-related features, explaining them by vibronic transitions on either S1, S0, or both, depending on the chain length of the investigated carotenoid.
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Affiliation(s)
- Vytautas Balevičius
- Department
of Theoretical Physics, Faculty of Physics, Vilnius University, Sauletekio Avenue 9, Building 3, LT-10222 Vilnius, Lithuania
| | - Darius Abramavicius
- Department
of Theoretical Physics, Faculty of Physics, Vilnius University, Sauletekio Avenue 9, Building 3, LT-10222 Vilnius, Lithuania
| | - Tomáš Polívka
- Institute
of Physics and Biophysics, Faculty of Science, University of South Bohemia, Branišovská 1760, 37005 České Budějovice, Czech
Republic
| | | | - Jürgen Hauer
- Photonics
Institute, TU Wien, Gusshausstrasse
27, 1040 Vienna, Austria
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11
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Challenges facing an understanding of the nature of low-energy excited states in photosynthesis. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2016; 1857:1627-1640. [PMID: 27372198 DOI: 10.1016/j.bbabio.2016.06.010] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/27/2016] [Accepted: 06/28/2016] [Indexed: 01/09/2023]
Abstract
While the majority of the photochemical states and pathways related to the biological capture of solar energy are now well understood and provide paradigms for artificial device design, additional low-energy states have been discovered in many systems with obscure origins and significance. However, as low-energy states are naively expected to be critical to function, these observations pose important challenges. A review of known properties of low energy states covering eight photochemical systems, and options for their interpretation, are presented. A concerted experimental and theoretical research strategy is suggested and outlined, this being aimed at providing a fully comprehensive understanding.
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12
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Kosumi D, Horibe T, Sugisaki M, Cogdell RJ, Hashimoto H. Photoprotection Mechanism of Light-Harvesting Antenna Complex from Purple Bacteria. J Phys Chem B 2016; 120:951-6. [PMID: 26800035 DOI: 10.1021/acs.jpcb.6b00121] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Photosynthetic light-harvesting apparatus efficiently capture sunlight and transfer the energy to reaction centers, while they safely dissipate excess energy to surrounding environments for a protection of their organisms. In this study, we performed pump-probe spectroscopic measurements with a temporal window ranging from femtosecond to submillisecond on the purple bacterial antenna complex LH2 from Rhodobacter sphaeroides 2.4.1 to clarify its photoprotection functions. The observed excited state dynamics in the time range from subnanosecond to microsecond exhibits that the triplet-triplet excitation energy transfer from bacteriochlorophyll a to carotenoid takes place with a time constant of 16.7 ns. Furthermore, ultrafast spectroscopic data suggests that a molecular assembly of bacteriochlorophyll a in LH2 efficiently suppresses a generation of triple bacteriochlorophyll a.
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Affiliation(s)
- Daisuke Kosumi
- Institute of Pulsed Power Science, Kumamoto University , 2-39-1 Kurokami, Chuo-ku Kumamoto, 860-8555 Japan.,Department of Physics, Graduate School of Science and Technology, Kumamoto University , Chuo-ku Kumamoto, 860-8555 Japan
| | - Tomoko Horibe
- Department of Applied Chemistry for Environment, Faculty of Science and Technology, Kwansei Gakuin University , 2-1, Gakuen, Sanda, Hyogo 669-1337 Japan
| | - Mitsuru Sugisaki
- Department of Physics, Graduate School of Science, Osaka City University , 3-3-138 Sugimoto, Sumiyoshi-ku Osaka 558-8585, Japan
| | - Richard J Cogdell
- Glasgow Biomedical Research Centre, University of Glasgow, 126 University Place , Glasgow, G12 8QQ, Scotland, U.K
| | - Hideki Hashimoto
- Department of Applied Chemistry for Environment, Faculty of Science and Technology, Kwansei Gakuin University , 2-1, Gakuen, Sanda, Hyogo 669-1337 Japan
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13
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Abstract
Carotenoids are ubiquitous and essential pigments in photosynthesis. They absorb in the blue-green region of the solar spectrum and transfer the absorbed energy to (bacterio-)chlorophylls, and so expand the wavelength range of light that is able to drive photosynthesis. This is an example of singlet-singlet energy transfer, and so carotenoids serve to enhance the overall efficiency of photosynthetic light reactions. Carotenoids also act to protect photosynthetic organisms from the harmful effects of excess exposure to light. Triplet-triplet energy transfer from chlorophylls to carotenoids plays a key role in this photoprotective reaction. In the light-harvesting pigment-protein complexes from purple photosynthetic bacteria and chlorophytes, carotenoids have an additional role of structural stabilization of those complexes. In this article we review what is currently known about how carotenoids discharge these functions. The molecular architecture of photosynthetic systems will be outlined first to provide a basis from which to describe carotenoid photochemistry, which underlies most of their important functions in photosynthesis.
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Affiliation(s)
- Hideki Hashimoto
- The Osaka City University Advanced Research Institute for Natural Science and Technology (OCARINA), Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan.
- Department of Physics, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan.
| | - Chiasa Uragami
- Department of Physics, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Richard J Cogdell
- Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, Scotland, UK
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14
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Natural and artificial light-harvesting systems utilizing the functions of carotenoids. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2015. [DOI: 10.1016/j.jphotochemrev.2015.07.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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15
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Beck WF, Bishop MM, Roscioli JD, Ghosh S, Frank HA. Excited state conformational dynamics in carotenoids: Dark intermediates and excitation energy transfer. Arch Biochem Biophys 2015; 572:175-183. [DOI: 10.1016/j.abb.2015.02.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Revised: 01/24/2015] [Accepted: 02/13/2015] [Indexed: 11/26/2022]
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16
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Balevičius V, Pour AG, Savolainen J, Lincoln CN, Lukeš V, Riedle E, Valkunas L, Abramavicius D, Hauer J. Vibronic energy relaxation approach highlighting deactivation pathways in carotenoids. Phys Chem Chem Phys 2015; 17:19491-9. [DOI: 10.1039/c5cp00856e] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Energy relaxation between two electronic states of a molecule is mediated by a set of relevant vibrational states.
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Affiliation(s)
- Vytautas Balevičius
- Department of Theoretical Physics
- Faculty of Physics
- Vilnius University
- LT-10222 Vilnius
- Lithuania
| | | | - Janne Savolainen
- Department of Physical Chemistry II
- Ruhr-University Bochum
- 44780 Bochum
- Germany
| | - Craig N. Lincoln
- Photonics Institute
- Vienna University of Technology
- 1040 Vienna
- Austria
| | - Vladimír Lukeš
- Department of Chemical Physics
- Slovak University of Technology
- 81237 Bratislava
- Slovakia
| | - Eberhard Riedle
- Lehrstuhl für BioMolekulare Optik
- Ludwig-Maximilians-University
- 80538 Munich
- Germany
| | - Leonas Valkunas
- Department of Theoretical Physics
- Faculty of Physics
- Vilnius University
- LT-10222 Vilnius
- Lithuania
| | - Darius Abramavicius
- Department of Theoretical Physics
- Faculty of Physics
- Vilnius University
- LT-10222 Vilnius
- Lithuania
| | - Jürgen Hauer
- Photonics Institute
- Vienna University of Technology
- 1040 Vienna
- Austria
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17
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Ehlers F, Scholz M, Schimpfhauser J, Bienert J, Oum K, Lenzer T. Collisional relaxation of apocarotenals: identifying the S* state with vibrationally excited molecules in the ground electronic state S0*. Phys Chem Chem Phys 2015; 17:10478-88. [DOI: 10.1039/c4cp05600k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The S* signal of carotenoids corresponds to vibrationally hot molecules in the ground electronic state S0*.
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Affiliation(s)
- Florian Ehlers
- Georg-August-Universität Göttingen
- Institut für Physikalische Chemie
- 37077 Göttingen
- Germany
| | - Mirko Scholz
- Universität Siegen
- Physikalische Chemie 2
- 57076 Siegen
- Germany
| | | | - Jürgen Bienert
- Max-Planck-Institut für biophysikalische Chemie
- 37077 Göttingen
- Germany
| | - Kawon Oum
- Universität Siegen
- Physikalische Chemie 2
- 57076 Siegen
- Germany
| | - Thomas Lenzer
- Universität Siegen
- Physikalische Chemie 2
- 57076 Siegen
- Germany
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18
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Kosumi D, Maruta S, Fujii R, Sugisaki M, Takaichi S, Cogdell RJ, Hashimoto H. A Regulation of Energy Flow in Purple Bacterial Photosynthetic Antennas. SPRINGER PROCEEDINGS IN PHYSICS 2015. [DOI: 10.1007/978-3-319-13242-6_140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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19
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Durchan M, Keşan G, Šlouf V, Fuciman M, Staleva H, Tichý J, Litvín R, Bína D, Vácha F, Polívka T. Highly efficient energy transfer from a carbonyl carotenoid to chlorophyll a in the main light harvesting complex of Chromera velia. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2014; 1837:1748-55. [DOI: 10.1016/j.bbabio.2014.06.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 06/01/2014] [Accepted: 06/03/2014] [Indexed: 11/26/2022]
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20
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Hashimoto H, Sugisaki M, Yoshizawa M. Ultrafast time-resolved vibrational spectroscopies of carotenoids in photosynthesis. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2014; 1847:69-78. [PMID: 25223589 DOI: 10.1016/j.bbabio.2014.09.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 08/22/2014] [Accepted: 09/05/2014] [Indexed: 11/16/2022]
Abstract
This review discusses the application of time-resolved vibrational spectroscopies to the studies of carotenoids in photosynthesis. The focus is on the ultrafast time regime and the study of photophysics and photochemistry of carotenoids by femtosecond time-resolved stimulated Raman and four-wave mixing spectroscopies. This article is part of a Special Issue entitled: Vibrational spectroscopies and bioenergetic systems.
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Affiliation(s)
- Hideki Hashimoto
- The Osaka City University Advanced Research Institute for Natural Science and Technology (OCARINA), Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan; Department of Physics, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan.
| | - Mitsuru Sugisaki
- Department of Physics, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Masayuki Yoshizawa
- Department of Physics, Graduate School of Science, Tohoku University, Aramaki-aza-aoba, Aoba-ku, Sendai 980-8578, Japan
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21
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Kosumi D, Nakagawa K, Sakai S, Nagaoka Y, Maruta S, Sugisaki M, Dewa T, Nango M, Hashimoto H. Ultrafast intramolecular relaxation dynamics of Mg- and Zn-bacteriochlorophyll a. J Chem Phys 2014; 139:034311. [PMID: 23883031 DOI: 10.1063/1.4813526] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Ultrafast excited-state dynamics of the photosynthetic pigment (Mg-)bacteriochlorophyll a and its Zn-substituted form were investigated by steady-state absorption∕fluorescence and femtosecond pump-probe spectroscopic measurements. The obtained steady-state absorption and fluorescence spectra of bacteriochlorophyll a in solution showed that the central metal compound significantly affects the energy of the Qx state, but has almost no effect on the Qy state. Photo-induced absorption spectra were recorded upon excitation of Mg- and Zn-bacteriochlorophyll a into either their Qx or Qy state. By comparing the kinetic traces of transient absorption, ground-state beaching, and stimulated emission after excitation to the Qx or Qy state, we showed that the Qx state was substantially incorporated in the ultrafast excited-state dynamics of bacteriochlorophyll a. Based on these observations, the lifetime of the Qx state was determined to be 50 and 70 fs for Mg- and Zn-bacteriochlorophyll a, respectively, indicating that the lifetime was influenced by the central metal atom due to the change of the energy gap between the Qx and Qy states.
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Affiliation(s)
- Daisuke Kosumi
- The Osaka City University Advanced Research Institute for Natural Science and Technology, 3-3-138 Sugimoto, Osaka 558-8585, Japan.
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22
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Hauer J, Maiuri M, Viola D, Lukes V, Henry S, Carey AM, Cogdell RJ, Cerullo G, Polli D. Explaining the temperature dependence of spirilloxanthin's S* signal by an inhomogeneous ground state model. J Phys Chem A 2013; 117:6303-10. [PMID: 23577754 PMCID: PMC3725610 DOI: 10.1021/jp4011372] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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We
investigate the nature of the S* excited state in carotenoids by performing
a series of pump–probe experiments with sub-20 fs time resolution
on spirilloxanthin in a polymethyl-methacrylate matrix varying the
sample temperature. Following photoexcitation, we observe sub-200
fs internal conversion of the bright S2 state into the
lower-lying S1 and S* states, which in turn relax to the
ground state on a picosecond time scale. Upon cooling down the sample
to 77 K, we observe a systematic decrease of the S*/S1 ratio.
This result can be explained by assuming two thermally populated ground
state isomers. The higher lying one generates the S* state, which
can then be effectively frozen out by cooling. These findings are
supported by quantum chemical modeling and provide strong evidence
for the existence and importance of ground state isomers in the photophysics
of carotenoids.
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Affiliation(s)
- J Hauer
- Photonics Institute, Vienna University of Technology, Gusshausstrasse 27, 1040 Vienna, Austria
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23
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Pillai S, Ravensbergen J, Antoniuk-Pablant A, Sherman BD, van Grondelle R, Frese RN, Moore TA, Gust D, Moore AL, Kennis JTM. Carotenoids as electron or excited-state energy donors in artificial photosynthesis: an ultrafast investigation of a carotenoporphyrin and a carotenofullerene dyad. Phys Chem Chem Phys 2013; 15:4775-84. [DOI: 10.1039/c3cp50364j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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