Sensitization of the Primary Charge Separation in Photosystem I to Green Light by an Amphiphilic Polymer Bearing Rhodamine 6G

An amphiphilic polymer carrying an artificial fluorescent dye, Rhodamine 6G (Rh6G), acts as a good solubilizing agent for a hydrophobic membrane protein, the photosystem (PS) I complex from Spirulina piatensis, and at the same time as an efficient sensitizing agent in the green wavelength region, resulting in an enhancement of the primary charge separation within the complex by ca. 1.5-fold.