초록 |
To design an artificial light-harvesting antennae, a pullulan, polysaccharide polymer consisting of maltotriose units, was chemically modified with energy-donating (PZn) and energy-accepting porphyrins (PFB), giving pullulan conjugates. Using the fluorescence emission spectra, the PZn-to-PFB energy transfer property of pullulan conjugates was monitored at different DMF/water ratios, where the efficiency of energy transfer increases along with the content of water. We report on the details of solvent-induced intramolecular energy transfer properties in pullulan conjugates. |