Abstract
The morphology, optical, and molecular-conformation characteristics of amphiphilic molecular brushes with a polyimide main chain and poly(methacrylic)acid acid side chains loaded with the second-generation photosensitizer Radachlorine® or a biogenic element (selenium in the zero-valence form Se0) nanoparticles are studied using atomic force microscopy, UV spectroscopy, and dynamic/static light scattering. The effect of density Z of grafts of poly(methacrylic)acid acid side chains and of the introduction of Radachlorine® or Se0 into amphiphilic molecular brushes on the size, spectral, and molecular conformation characteristics of synthesized binary nanosystems is demonstrated. A nonmonotonic dependence of the nanostructure size and the film surface roughness with increasing Z in binary systems with Radachlorine® and, conversely, a monotonic decrease in the nanostructure size and surface roughness for systems containing Se0 nanoparticles are observed.
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ACKNOWLEDGMENTS
The authors are grateful to I.V. Ivanov (Institute of Macromolecular Compounds, Russian Academy of Sciences) for his help in the synthesis of AMB samples and M.L. Gelfond (Petrov National Medical Research Center of Oncology, Ministry of Health, Russian Federation) for providing Radachlorine® preparation.
Funding
This work was supported by the Russian Foundation for Basic Research, project no. 17-53-61026 “Egypt_a.”
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Translated by N. Wadhwa
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Valueva, S.V., Sukhanova, T.E., Vylegzhanina, M.E. et al. Binary Nanosystems Based on Amphiphilic Molecular Brushes Loaded with Radachlorine® Photosensitizer or Selenium Nanoparticles. Tech. Phys. 65, 1403–1410 (2020). https://doi.org/10.1134/S1063784220090273
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DOI: https://doi.org/10.1134/S1063784220090273