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Synthesis and spectroscopic analysis of uranyl sugar complexesSteudtner, R.
The bonding of uranium with glucose and alpha cyclodextrin were investigated by time resolved laser fluorescence spectroscopy (TRLFS), attenuated total reflectance fourier transform infrared spectroscopy (ATR-FTIR) and confocal laser scanning microscopy (CLSM). Two different uranyl-sugar complexes could be synthesized. Both complexes show a strong fluorescence signal by excitation with 266 nm. The emission maxima were detected at 497 nm for the uranyl-glucose complex and 494 nm for the uranyl-alpha-cyclodextrin complex respectively. The time resolved investigations show a fluorescence lifetime of 36 µs for the uranyl-glucose complex and 37 µs for the uranyl-alpha-cyclodextrin complex.
Keywords: Uranyl, Sugar, TRLFS, ATR-FTIR, CLSM
5th SUPRAPHONE/4th WG Meeting COST D31, 29.-31.05.2008, Prague, Czech Republic