Richard J Cogdell
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Explore the profile of Richard J Cogdell including associated specialties, affiliations and a list of published articles.
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189
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2267
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Recent Articles
1.
Uragami C, Yoshida M, Gardiner A, Cogdell R, Hashimoto H
Molecules
. 2025 Feb;
30(4).
PMID: 40005125
Carotenoids are crucial for photosynthesis, playing key roles in light harvesting and photoprotection. In this study, spheroidene and bacteriochlorophyll (Bchl ) were reconstituted into the chromatophores of the carotenoidless mutant...
2.
Horiuchi K, Uragami C, Tao R, Kosumi D, Cogdell R, Hashimoto H
Molecules
. 2023 Jun;
28(11).
PMID: 37298900
isomers of carotenoids play important roles in light harvesting and photoprotection in photosynthetic bacteria, such as the reaction center in purple bacteria and the photosynthetic apparatus in cyanobacteria. Carotenoids containing...
3.
Yukihira N, Uragami C, Horiuchi K, Kosumi D, Gardiner A, Cogdell R, et al.
Commun Chem
. 2023 Jan;
5(1):135.
PMID: 36697849
In bacterial photosynthesis, the excitation energy transfer (EET) from carotenoids to bacteriochlorophyll a has a significant impact on the overall efficiency of the primary photosynthetic process. This efficiency can be...
4.
Elvers I, Nguyen-Phan T, Gardiner A, Hunter C, Cogdell R, Kohler J
J Phys Chem B
. 2022 Nov;
126(49):10335-10346.
PMID: 36449272
We investigated the fluorescence kinetics of LH2 complexes from , the cryo-EM structure of which has been recently elucidated with 2.4 Å resolution. The experiments have been carried out as...
5.
Duan H, Jha A, Chen L, Tiwari V, Cogdell R, Ashraf K, et al.
Proc Natl Acad Sci U S A
. 2022 Nov;
119(49):e2212630119.
PMID: 36442134
In the primary step of natural light harvesting, the solar photon energy is captured in a photoexcited electron-hole pair, or an exciton, in chlorophyll. Its conversion to chemical potential occurs...
6.
Qian P, Nguyen-Phan C, Gardiner A, Croll T, Roszak A, Southall J, et al.
Proc Natl Acad Sci U S A
. 2022 Oct;
119(43):e2210109119.
PMID: 36251992
The genomes of some purple photosynthetic bacteria contain a multigene family encoding a series of α- and β-polypeptides that together form a heterogeneous antenna of light-harvesting 2 (LH2) complexes. To...
7.
Miguel-Romero L, Alqasmi M, Bacarizo J, Tan J, Cogdell R, Chen J, et al.
Nucleic Acids Res
. 2022 Oct;
50(19):11109-11127.
PMID: 36200825
Mobile genetic elements control their life cycles by the expression of a master repressor, whose function must be disabled to allow the spread of these elements in nature. Here, we...
8.
Hashimoto H, Uragami C, Yukihira N, Horiuchi K, Cogdell R
Methods Enzymol
. 2022 Aug;
674:1-51.
PMID: 36008004
Carotenoid excited singlet states, in particular, are typically very short lived. Therefore, time-resolved absorption spectroscopy in the time regime from femtoseconds to sub-milliseconds are required to unravel and understand the...
9.
Cupellini L, Qian P, Nguyen-Phan T, Gardiner A, Cogdell R
Photosynth Res
. 2022 Jun;
156(1):75-87.
PMID: 35672557
The light-harvesting complex 2 (LH2) of purple bacteria is one of the most studied photosynthetic antenna complexes. Its symmetric structure and ring-like bacteriochlorophyll arrangement make it an ideal system for...
10.
Kim J, Nguyen-Phan T, Gardiner A, Yoon T, Cogdell R, Cho M, et al.
J Phys Chem Lett
. 2022 Jan;
13(4):1099-1106.
PMID: 35080414
Exciton relaxation dynamics in multichromophore systems are often modeled using Redfield theory, where bath fluctuations mediate the relaxation among the exciton eigenstates. Identifying the vibrational or phonon modes that are...