Colloidal stability and photophysical characteristics of luminesent silica nanoparticles modified with various nitrogen/oxygen-containing trialkoxysilanes
- Авторы: Burilov V.1, Latypova A.1, Safiullin R.2, Antipin I.1,3
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Учреждения:
- Kazan (Volga Region) Federal University
- Kazan National Research Technological University
- Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center
- Выпуск: Том 86, № 3 (2016)
- Страницы: 661-667
- Раздел: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/214323
- DOI: https://doi.org/10.1134/S1070363216030245
- ID: 214323
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Аннотация
Surface modification of the luminescent silica nanoparticles doped with Tb(III)–p-sulfonatothiacalix[ 4]arene complex was carried out using a series of nitrogen/oxygen-containing trialkoxysilanes. It was found that groups capable of nonspecific interactions on the surface of the nanoparticles cause a significant decrease in their colloidal stability. The chromophore moieties in the modifiers were found to quench the luminescence of the nanoparticles. The surface modification of the nanoparticles is responsible for the change in the mechanism of luminescence quenching in the presence of copper(II) ions due to decreased accessibility of luminophores to the quencher.
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Об авторах
V. Burilov
Kazan (Volga Region) Federal University
Автор, ответственный за переписку.
Email: ultrav@bk.ru
Россия, ul. Kremlevskaya 18, Kazan, Tatarstan, 420008
A. Latypova
Kazan (Volga Region) Federal University
Email: ultrav@bk.ru
Россия, ul. Kremlevskaya 18, Kazan, Tatarstan, 420008
R. Safiullin
Kazan National Research Technological University
Email: ultrav@bk.ru
Россия, Kazan, Tatarstan, 420015
I. Antipin
Kazan (Volga Region) Federal University; Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center
Email: ultrav@bk.ru
Россия, ul. Kremlevskaya 18, Kazan, Tatarstan, 420008; Kazan, Tatarstan
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