Light-induced Charge Separation in Photosystem I can be Sensitized by an Artificial Fluorescent Dye Covalently Linked to the Photosystem I Complex Surfaces
2005; Oxford University Press; Volume: 34; Issue: 11 Linguagem: Inglês
10.1246/cl.2005.1472
ISSN1348-0715
AutoresAkimasa Nakamura, Shinji Mizoguchi, Emi Yoshida, Yuki Kato, Tadashi Watanabe,
Tópico(s)Spectroscopy and Quantum Chemical Studies
ResumoAbstract To expand the spectral window for the light-induced charge separation in photosystem (PS) I of oxygenic photosynthetic organisms artificially, Rhodamine B (RhB) was covalently linked to the solution-exposed surfaces of PS I. By introduction of RhB to PS I, the activity of light-induced charge separation for excitation wavelength at which the light absorption is dominated by RhB increased by about 1.8-fold, showing that RhB covalently attached to PS I can serve as the artificial light-harvesting antenna.
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