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

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Title: New Composite Contrast Agents Based on Ln and Graphene Matrix for Multi-Energy Computed Tomography.
Authors: Suslova, Evgeniya V.1 (AUTHOR) suslova@kge.msu.ru, Kozlov, Alexei P.1 (AUTHOR), Shashurin, Denis A.1,2 (AUTHOR), Rozhkov, Vladislav A.3 (AUTHOR), Sotenskii, Rostislav V.3 (AUTHOR), Maximov, Sergei V.1 (AUTHOR), Savilov, Serguei V.1 (AUTHOR), Medvedev, Oleg S.2,4 (AUTHOR), Chelkov, Georgy A.3 (AUTHOR)
Source: Nanomaterials (2079-4991). Dec2022, Vol. 12 Issue 23, p4110. 16p.
Subjects: Contrast media, Graphene, X-ray photoelectron spectroscopy, Computed tomography, Transmission electron microscopy, Rare earth metals
Abstract: 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. [ABSTRACT FROM AUTHOR]
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: New Composite Contrast Agents Based on Ln and Graphene Matrix for Multi-Energy Computed Tomography.
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  Data: <searchLink fieldCode="AR" term="%22Suslova%2C+Evgeniya+V%2E%22">Suslova, Evgeniya V.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> suslova@kge.msu.ru</i><br /><searchLink fieldCode="AR" term="%22Kozlov%2C+Alexei+P%2E%22">Kozlov, Alexei P.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shashurin%2C+Denis+A%2E%22">Shashurin, Denis A.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rozhkov%2C+Vladislav+A%2E%22">Rozhkov, Vladislav A.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sotenskii%2C+Rostislav+V%2E%22">Sotenskii, Rostislav V.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Maximov%2C+Sergei+V%2E%22">Maximov, Sergei V.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Savilov%2C+Serguei+V%2E%22">Savilov, Serguei V.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Medvedev%2C+Oleg+S%2E%22">Medvedev, Oleg S.</searchLink><relatesTo>2,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chelkov%2C+Georgy+A%2E%22">Chelkov, Georgy A.</searchLink><relatesTo>3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Dec2022, Vol. 12 Issue 23, p4110. 16p.
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  Data: <searchLink fieldCode="DE" term="%22Contrast+media%22">Contrast media</searchLink><br /><searchLink fieldCode="DE" term="%22Graphene%22">Graphene</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+photoelectron+spectroscopy%22">X-ray photoelectron spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Computed+tomography%22">Computed tomography</searchLink><br /><searchLink fieldCode="DE" term="%22Transmission+electron+microscopy%22">Transmission electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Rare+earth+metals%22">Rare earth metals</searchLink>
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  Data: 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. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/nano12234110
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      – SubjectFull: Contrast media
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      – SubjectFull: Graphene
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      – SubjectFull: X-ray photoelectron spectroscopy
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      – SubjectFull: Computed tomography
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      – SubjectFull: Transmission electron microscopy
        Type: general
      – SubjectFull: Rare earth metals
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      – TitleFull: New Composite Contrast Agents Based on Ln and Graphene Matrix for Multi-Energy Computed Tomography.
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              M: 12
              Text: Dec2022
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