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

Описание

Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: International Conference on Atomic and Molecular Pulsed Lasers XII (AMPL); Tomsk, RUSSIA; Tomsk, RUSSIA

Год издания: 2015

Идентификатор DOI: 10.1117/12.2225184

Ключевые слова: quantum dots, polyelectrolyte complex, chitosan, absorption, luminescence, stability, absorption, chitosan, luminescence, polyelectrolyte complex, Quantum dots, stability, Absorption, Biocompatibility, Chitin, Chitosan, Convergence of numerical methods, Ionic strength, Light scattering, Luminescence, Nanocrystals, Polyelectrolytes, Pulsed lasers, Scanning electron microscopy, Synthesis (chemical), Absorption and photoluminescence, Emission intensity, Polyelectrolyte complexes, Polymer particles, Sensor applications, Synthesis and characterizations, Visible spectral regions, Zeta potential measurements, Semiconductor quantum dots

Аннотация: 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 synthesiПоказать полностьюzed 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.

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Издание

Журнал: INTERNATIONAL CONFERENCE ON ATOMIC AND MOLECULAR PULSED LASERS XII

Выпуск журнала: Vol. 9810

ISSN журнала: 0277786X

Место издания: BELLINGHAM

Издатель: SPIE-INT SOC OPTICAL ENGINEERING

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