Slyusareva Evgenia, Gerasimova Marina, Slabko Vitaliy, Abuzova Nina, Plotnikov Alexei, Eychmüller Alexander
Siberian Federal University, Svobodny Prospect 79, 660041, Krasnoyarsk, Russia.
Technische Universität Dresden, Bergstraße 66b, 01062, Dresden, Germany.
Chemphyschem. 2015 Dec 21;16(18):3997-4003. doi: 10.1002/cphc.201500634. Epub 2015 Oct 26.
Biocompatible chitosan-based polyelectrolyte complexes (PECs) doped with xanthene dyes (fluorescein, eosin Y, erythrosin B, rhodamine 6G) 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. Eosin Y is found to be the optimal dopant, providing both a high dye content in PECs and a high quantum yield of fluorescence.
合成了掺杂呫吨染料（荧光素、曙红Y、赤藓红B、罗丹明6G）的生物相容性壳聚糖基聚电解质复合物（PEC），并通过扫描电子显微镜、动态光散射、zeta电位测量以及吸收和发光（包括偏振、时间分辨和磷光）光谱对其进行了表征。从染料-PEC结合的机制和刚性、染料中的重原子效应以及PEC稳定性等方面对结果进行了讨论。发现曙红Y是最佳掺杂剂，它在PEC中既提供了高染料含量又提供了高荧光量子产率。
