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Generation 3 PAMAM dendrimer TAMRA conjugates containing precise dye/dendrimer ratios
Janet Manono1, Casey A Dougherty2, Kirsten Jones1
1Department of Chemistry, Xavier University of Louisiana, New Orleans LA 70125, USA.
Abstract:
The synthesis, isolation, and characterization of generation 3 poly(amidoamine) (G3 PAMAM) dendrimer containing precise ratios of 5-carboxytetramethylrhodamine succinimidyl ester (TAMRA) dye (n = 1-3) per polymer particle are reported. Stochastic conjugation of TAMRA dye to the dendrimer was followed by separation into precise dye-polymer ratios using rp-HPLC. The isolated materials were characterized by rp-UPLC, MALDI-TOF-MS, and 1H NMR spectroscopy, UV-vis, and fluorescence spectroscopies.
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