Fluorescence depolarization dynamics in the B850 complex of purple bacteria
(2002) In Chemical Physics 275(1-3). p.15-30- Abstract
- The fluorescence anisotropic decay is modeled for the B850 bacteriochlorophyll a complex of the purple bacterium Rhodopseudomonas acidophila. Structural information is combined with experimental data to derive a Hamilton operator which models the S-0-S-1 excitation energy transfer between the pigments as well as the energy dissipation into the protein environment. The time-resolved fluorescence signal is determined from the solutions of the equations of motion for the one-exciton density matrix. Nonsecular terms in the Redfield relaxation tensor are shown to have a dramatic influence on the calculated time scales for depolarization.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/345925
- author
- Kuhn, O ; Sundström, Villy LU and Pullerits, Tönu LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Chemical Physics
- volume
- 275
- issue
- 1-3
- pages
- 15 - 30
- publisher
- Elsevier
- external identifiers
-
- wos:000173257000003
- scopus:0036142391
- ISSN
- 0301-0104
- DOI
- 10.1016/S0301-0104(01)00526-2
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
- id
- a35998d5-a95d-40b0-b607-b255d7f82c8a (old id 345925)
- date added to LUP
- 2016-04-01 17:05:02
- date last changed
- 2022-03-22 23:12:23
@article{a35998d5-a95d-40b0-b607-b255d7f82c8a, abstract = {{The fluorescence anisotropic decay is modeled for the B850 bacteriochlorophyll a complex of the purple bacterium Rhodopseudomonas acidophila. Structural information is combined with experimental data to derive a Hamilton operator which models the S-0-S-1 excitation energy transfer between the pigments as well as the energy dissipation into the protein environment. The time-resolved fluorescence signal is determined from the solutions of the equations of motion for the one-exciton density matrix. Nonsecular terms in the Redfield relaxation tensor are shown to have a dramatic influence on the calculated time scales for depolarization.}}, author = {{Kuhn, O and Sundström, Villy and Pullerits, Tönu}}, issn = {{0301-0104}}, language = {{eng}}, number = {{1-3}}, pages = {{15--30}}, publisher = {{Elsevier}}, series = {{Chemical Physics}}, title = {{Fluorescence depolarization dynamics in the B850 complex of purple bacteria}}, url = {{http://dx.doi.org/10.1016/S0301-0104(01)00526-2}}, doi = {{10.1016/S0301-0104(01)00526-2}}, volume = {{275}}, year = {{2002}}, }