Электронный каталог

Статья

Suslova, E.
Gd&sub(2)O&sub(3)-Based Contrasting Agents for Photon-Counting Computed Tomography: Effect of Structure, Composition, and Particle Size / E.Suslova, D.Shashurin, G.Chelkov, [et al.] // Materials Chemistry and Physics [Electronic resource]. – 2024. – Vol. 313. – P. 128733. – URL: https://doi.org/10.1016/j.matchemphys.2023.128733. – Bibliogr.: 42.

New contrast agents (CAs) for photon-counting computed tomography (PCCT) were synthesized, including Gd&sub(2)O&sub(3)@SiO&sub(2) core-shell structures and surface-modified Gd&sub(2)O&sub(3)–SiO&sub(2)–C&sub(3)H&sub(6)NH&sub(2) nanoparticles. Their composition and structure were assessed by IR spectroscopy, scanning electron microscopy, X-ray phase analysis, and thermogravimetric analysis. The X-ray attenuation of synthesized particles Gd&sub(2)O&sub(3)@SiO&sub(2) with a size of 150–200 nm and Gd&sub(2)O&sub(3)–SiO&sub(2)–C&sub(3)H&sub(6)NH&sub(2) with a size of 200–300 nm, as well as the sample of Gd&sub(2)O&sub(3) with a particle size of 300–500 nm in gelatine dispersion, was investigated in phantom studies by PCCT. Energy-specific X-ray attenuation properties of all CA types correlated with their Gd concentrations. Gd&sub(2)O&sub(3) demonstrated higher X-ray attenuation compared to Gd&sub(2)O&sub(3)@SiO&sub(2) and Gd&sub(2)O&sub(3)–SiO&sub(2)–C&sub(3)H&sub(6)NH&sub(2) at the same concentrations of Gd, which can be explained by the effect of the SiO&sub(2) shells



Спец.(статьи,препринты) = С 332.8 - Синхротронное излучение. Лазеры на свободных электронах. Получение и использование рентгеновских лучей
Спец.(статьи,препринты) = С 33 а - Нанофизика. Нанотехнология$
ОИЯИ = ОИЯИ (JINR)2024
Ключевых слов = 20/024