How light is converted into chemical energy in a natural photosynthetic system is of great interest in energy sciences. Using single-molecule and single-vesicle fluorescence spectroscopy and imaging, we have observed fluctuating inter-molecular protein energy transfers in the photosynthetic membranes of R. sphaeroides. Our results suggest that there are dynamic coupled and non-coupled states in the light-harvesting protein assembly.
Revised: August 2, 2007 |
Published: June 28, 2007
Citation
Pan D., D. Hu, R. Liu, X. Zeng, S. Kaplan, and H.P. Lu. 2007.Fluctuating Two-State Light Harvesting in a Photosynthetic Membrane.Journal of Physical Chemistry C 111, no. 25:8948-8956.PNNL-SA-49243.doi:10.1021/jp071493y