New Composite Contrast Agents Based on Ln and Graphene Matrix for Multi-Energy Computed Tomography

Авторы: Suslova Evgeniya V., Kozlov Alexei P., Shashurin Denis A., Rozhkov Vladislav A., Sotenskii Rostislav V., Maximov Sergei V., Savilov Serguei V., Medvedev Oleg S., Chelkov Georgy A.
Журнал: Nanomaterials
Том: 12
Номер: 23
Год издания: 2022
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Номер статьи: 4110
DOI: 10.3390/nano12234110
Аннотация: The subject of the current research study is aimed at the development of novel types of contrast agents (CAs) for multi-energy computed tomography (CT) based on Ln–graphene composites, which include Ln (Ln = La, Nd, and Gd) nanoparticles with a size of 2–3 nm, acting as key contrasting elements, and graphene nanoflakes (GNFs) acting as the matrix. The synthesis and surface modifications of the GNFs and the properties of the new CAs are presented herein. The samples have had their characteristics determined using X-ray photoelectron spectroscopy, X-Ray diffraction, transmission electron microscopy, thermogravimetric analysis, and Raman spectroscopy. Multi-energy CT images of the La-, Nd-, and Gd-based CAs demonstrating their visualization and discriminative properties, as well as the possibility of a quantitative analysis, are presented.
Добавил в систему: Шашурин Денис Александрович

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