NDLI: Spectroscopy of individual light-harvesting 2 complexes of Rhodopseudomonas acidophila: diagonal disorder, intercomplex heterogeneity, spectral diffusion, and energy transfer in the B800 band.

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Spectroscopy of individual light-harvesting 2 complexes of Rhodopseudomonas acidophila: diagonal disorder, intercomplex heterogeneity, spectral diffusion, and energy transfer in the B800 band.

Content Provider	Semantic Scholar
Author	Oijen, Antoine M. Van Ketelaars, Martijn Köhler, J. Aartsma, Thijs J. Schmidt, Jürgen
Copyright Year	2000
Abstract	This paper reports a detailed spectroscopic study of the B800 absorption band of individual light-harvesting 2 (LH2) complexes of the photosynthetic purple bacterium Rhodopseudomonas acidophila at 1. 2 K. By applying single-molecule detection techniques to this system, details and properties can be revealed that remain obscured in conventional ensemble experiments. For instance, from fluorescence-excitation spectra of the individual complexes a more direct measure of the diagonal disorder could be obtained. Further spectral diffusion phenomena and homogeneous linewidths of individual bacteriochlorophyll a (BChl a) molecules are observed, revealing valuable information on excited-state dynamics. This work demonstrates that it is possible to obtain detailed spectral information on individual pigment-protein complexes, providing direct insight into their electronic structure and into the mechanisms underlying the highly efficient energy transfer processes in these systems.
File Format	PDF HTM / HTML
DOI	10.1016/S0006-3495(00)76709-9
PubMed reference number	10692341
Journal	Medline
Volume Number	78
Issue Number	3
Alternate Webpage(s)	https://core.ac.uk/download/pdf/82474260.pdf
Alternate Webpage(s)	https://www.rug.nl/research/portal/files/14694500/2000BiophysJvOijen.pdf
Alternate Webpage(s)	http://www.rug.nl/research/portal/files/14694500/2000BiophysJvOijen.pdf
Alternate Webpage(s)	https://doi.org/10.1016/S0006-3495%2800%2976709-9
Journal	Biophysical journal
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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