Synthesis and characterization of chitosan-based polyelectrolyte complexes, doped by quantum dots

被引：0

作者：

Abuzova, N. V. ^{[1
]}

Gerasimova, M. A. ^{[1
]}

Slabko, V. V. ^{[1
]}

Slyusareva, E. A. ^{[1
]}

机构：

[1] Siberian Fed Univ, 79 Svobodny Prospect, Krasnoyarsk 660041, Russia

来源：

INTERNATIONAL CONFERENCE ON ATOMIC AND MOLECULAR PULSED LASERS XII | 2015年 / 9810卷

关键词：

quantum dots; polyelectrolyte complex; chitosan; absorption; luminescence; stability; NANOPARTICLES; NANOCRYSTALS; ADSORPTION; CDTE;

D O I：

10.1117/12.2225184

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Doping of polymer particles by a fluorophores results in the sensitization within the visible spectral region becoming very promising materials for sensor applications. Colloids of biocompatible chitosan-based polyelectrolyte complexes (PECs) doped with quantum dots (QD) of CdTe and CdSe/ZnS (with sizes of 2.0-2.4 nm) were synthesized and characterized by scanning electron microscopy, dynamic light scattering, zeta-potential measurements, absorption and luminescence (including time-resolved) spectroscopy. The influence of ionic strength (0.02-1.5 M) on absorption and photoluminescence properties of encapsulated into PEC and unencapsulated quantum dots was investigated. The stability of the emission intensity of the encapsulated quantum dots has been shown to be strongly dependent on concentration of quantum dots.

引用

页数：6

共 12 条

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