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Liquid Crystals and their Application
Russian Journal

Zhidkie kristally i ikh prakticheskoe ispol'zovanie

Жидкие кристаллы и их практическое использование

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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2023, 23 (3), 36—45.
DOI: 10.18083/LCAppl.2023.3.36



Luminescent Media Based on Heteroligand Lanthanide Complexes and Lyotropic Mesophases for Bioimaging Application
Nataliya M. Selivanova1*, Nikita A. Melnikov1, Elena M. Kulagina1, Vyacheslav E. Semenov1,2
Author affiliations
1Kazan National Research Technological University, Kazan,
Russia
2Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences,
Kazan, Russia
*Corresponding author: natsel@mail.ru
Abstract
New terbium and europium heteroligand complexes with substituted 1,2,3-triazole – bis-1,3-(4-methylcarboxyl-1,2,3-triazol-1-yl)xylylene have been synthesized. A study of luminescent properties showed that the complexes exhibit high optical characteristics. The luminescence efficiency of [Tb(AcAc)2(TR)(H2O)2], increases by 13 % compared to the monoligand complex [Tb(AcAc)3(H2O)2]. In order to create biocompatible systems, an approach for the solubilization of hydrophobic complexes by incorporating them into the lyomesophase structure of P123/DMSO has been developed. According to polarization optical microscopy, the hybrid system containing 0.2 % of the [Tb(AcAc)3(H2O)2] complex shows a lamellar mesophase. Fluorescence microscopy study showed that the [Eu(TTA)2(TR)(H2O)2] complex is efficiently adsorbed on the surface of the Paramecium caudatum microorganism and exhibits red luminescence allowing visualization of biological objects.

Keywords: 1,2,3-triazole, lanthanides, lyotropic liquid crystals, luminescence, bioimaging

For citation: Selivanova N. M., Melnikov N. A., Kulagina E. M., Semenov V. E. Luminescent media based on heteroligand lanthanide complexes and lyotropic mesophases for bioimaging application. Liq. Cryst. and their Appl., 2023, 23 (3), 36–45 (in Russ.).





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