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Enabling magnetic resonance imaging of hollow-core microstructured optical fibers via nanocomposite coating R. E. Noskov, A. A. Zanishevskaya, A. A. Shuvalov [et al.]

Contributor(s): Zanishevskaya, Anastasia A | Shuvalov, Andrey A | German, Sergei V | Inozemtseva, Olga A | Kochergin, Taras P | Lazareva, Ekaterina N | Tuchin, Valery V | Ginzburg, Pavel | Skibina, Julia S | Noskov, Roman E | Gorin, Dmitry AMaterial type: ArticleArticleSubject(s): магнитно-резонансная томография | оптические волокна | нанокомпозитные покрытияGenre/Form: статьи в журналах Online resources: Click here to access online In: Optics express Vol. 27, № 7. P. 9868-9878Abstract: Optical fibers are widely used in bioimaging systems as flexible endoscopes that are capable of low-invasive penetration inside hollow tissue cavities. Here, we report on the technique that allows magnetic resonance imaging (MRI) of hollow-core microstructured fibers (HC-MFs), which paves the way for combing MRI and optical bioimaging. Our approach is based on layer-by-layer assembly of oppositely charged polyelectrolytes and magnetite nanoparticles on the inner core surface of HC-MFs. Incorporation of magnetite nanoparticles into polyelectrolyte layers renders HC-MFs visible for MRI and induces the red-shift in their transmission spectra. Specifically, the transmission shifts up to 60 nm have been revealed for the several-layers composite coating, along with the high-quality contrast of HC-MFs in MRI scans. Our results shed light on marrying fiber-based endoscopy with MRI to open novel possibilities for minimally invasive clinical diagnostics and surgical procedures in vivo.
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Библиогр.: 33 назв.

Optical fibers are widely used in bioimaging systems as flexible endoscopes that are capable of low-invasive penetration inside hollow tissue cavities. Here, we report on the technique that allows magnetic resonance imaging (MRI) of hollow-core microstructured fibers (HC-MFs), which paves the way for combing MRI and optical bioimaging. Our approach is based on layer-by-layer assembly of oppositely charged polyelectrolytes and magnetite nanoparticles on the inner core surface of HC-MFs. Incorporation of magnetite nanoparticles into polyelectrolyte layers renders HC-MFs visible for MRI and induces the red-shift in their transmission spectra. Specifically, the transmission shifts up to 60 nm have been revealed for the several-layers composite coating, along with the high-quality contrast of HC-MFs in MRI scans. Our results shed light on marrying fiber-based endoscopy with MRI to open novel possibilities for minimally invasive clinical diagnostics and surgical procedures in vivo.

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