期刊
CHEMPHYSCHEM
卷 16, 期 18, 页码 3997-4003出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201500634
关键词
absorption; chitosan; fluorescence spectroscopy; polyelectrolyte complexes; xanthene dyes
资金
- Ministry of Education and Science of the Russian Federation [3.1749.2014/K, 214/71]
Biocompatible chitosan-based polyelectrolyte complexes (PECs) doped with xanthene dyes (fluorescein, eosinY, erythrosinB, rhodamine6G) were synthesized and characterized by scanning electron microscopy, dynamic light scattering, zeta potential measurements, and absorption and luminescence (including polarized, time-resolved, and phosphorescence) spectroscopy. The results are discussed in terms of the mechanism and rigidity of dye-PEC binding, the heavy-atom effect in dyes and PEC stability. EosinY is found to be the optimal dopant, providing both a high dye content in PECs and a high quantum yield of fluorescence.
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