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Theranostic Platforms Based on Silica and Magnetic Nanoparticles Containing Quinacrine,Chitosan, Fluorophores,and Quantum Dots
Authors:Dmitry V. Korolev  Galina A. Shulmeyster  Natalia V. Evreinova  Maria S. Syrovatkina  Maria S. Istomina  Victor N. Postnov  Ilia V. Aleksandrov  Aleksandr S. Krasichkov  Michael M. Galagudza
Abstract:In this paper, we describe the synthesis of multilayer nanoparticles as a platform for the diagnosis and treatment of ischemic injuries. The platform is based on magnetite (MNP) and silica (SNP) nanoparticles, while quinacrine is used as an anti-ischemic agent. The synthesis includes the surface modification of nanoparticles with (3-glycidyloxypropyl)trimethoxysilane (GPMS), the immobilization of quinacrine, and the formation of a chitosan coating, which is used to fix the fluorophore indocyanine green (ICG) and colloidal quantum dots AgInS2/ZnS (CQDs), which serve as secondary radiation sources. The potential theranostic platform was studied in laboratory animals.
Keywords:theranostics   multilayer nanoparticles   magnetic nanoparticles   silica nanoparticles   chitosan   quinacrine   indocyanine green   colloidal quantum dots
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