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Literature DB >> 21830142

Polarization single complex imaging of circular photosynthetic antenna.

Sumera Tubasum¹, Daniel Thomsson, Richard Cogdell, Ivan Scheblykin, Tõnu Pullerits.

Abstract

Single complex fluorescence polarization spectroscopy is applied to study the peripheral light harvesting antenna (LH2) from photosynthetic purple bacterium Rhodopseudomonas (Rps.) acidophila. The measured two-dimensional excitation-emission polarization plots are used to construct geometric representation for the absorbing B800 and emitting B850 as ellipses. The shape and orientation of the ellipses is discussed in terms of tilted LH2 complexes where emission occurs from energetically disordered B850 excitons.

Entities: Chemical Disease Species

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Year: 2011 PMID： 21830142 DOI： 10.1007/s11120-011-9676-7

Source DB: PubMed Journal: Photosynth Res ISSN： 0166-8595 Impact factor: 3.573

13 in total

1. Unraveling the electronic structure of individual photosynthetic pigment-protein complexes

Authors:
Journal: Science Date: 1999-07-16 Impact factor: 47.728

2. The dynamics of structural deformations of immobilized single light-harvesting complexes.

Authors: M A Bopp; A Sytnik; T D Howard; R J Cogdell; R M Hochstrasser
Journal: Proc Natl Acad Sci U S A Date: 1999-09-28 Impact factor: 11.205

3. Single-molecule study of the electronic couplings in a circular array of molecules: light-harvesting-2 complex from Rhodospirillum molischianum.

Authors: Clemens Hofmann; Martijn Ketelaars; Michio Matsushita; Hartmut Michel; Thijs J Aartsma; Jürgen Köhler
Journal: Phys Rev Lett Date: 2003-01-10 Impact factor: 9.161

4. Fluorescence spectral fluctuations of single LH2 complexes from Rhodopseudomonas acidophila strain 10050.

Authors: Danielis Rutkauskas; Vladimir Novoderezkhin; Richard J Cogdell; Rienk van Grondelle
Journal: Biochemistry Date: 2004-04-20 Impact factor: 3.162

5. Spectral trends in the fluorescence of single bacterial light-harvesting complexes: experiments and modified redfield simulations.

Authors: Danielis Rutkauskas; Vladimir Novoderezhkin; Andrew Gall; John Olsen; Richard J Cogdell; C Neil Hunter; Rienk van Grondelle
Journal: Biophys J Date: 2006-01-06 Impact factor: 4.033

Polarization single complex imaging of circular photosynthetic antenna.

1. Unraveling the electronic structure of individual photosynthetic pigment-protein complexes

2. The dynamics of structural deformations of immobilized single light-harvesting complexes.

3. Single-molecule study of the electronic couplings in a circular array of molecules: light-harvesting-2 complex from Rhodospirillum molischianum.

4. Fluorescence spectral fluctuations of single LH2 complexes from Rhodopseudomonas acidophila strain 10050.

5. Spectral trends in the fluorescence of single bacterial light-harvesting complexes: experiments and modified redfield simulations.

6. Fluorescence and photobleaching dynamics of single light-harvesting complexes.

7. B800-->B850 energy transfer mechanism in bacterial LH2 complexes investigated by B800 pigment exchange.

8. Excitation-emission polarization spectroscopy of single light harvesting complexes.

9. Energy transfer in spectrally inhomogeneous light-harvesting pigment-protein complexes of purple bacteria.

10. Collective fluorescence blinking in linear J-aggregates assisted by long-distance exciton migration.

1. Fluctuating exciton localization in giant π-conjugated spoked-wheel macrocycles.