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Investigation of proton spin relaxation in water with dispersed silicon nanoparticles for potential magnetic resonance imaging applicationsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 10 августа 2018 г.
- Авторы: Kargina Yu V., Gongalsky M.B., Perepukhov A.M., Gippius A.A., Minnekhanov A.A., Zvereva E.A., Maximychev A.V., Timoshenko V.Yu
- Журнал: Journal of Applied Physics
- Том: 123
- Номер: 10
- Год издания: 2018
- Издательство: AIP Publishing
- Местоположение издательства: United States
- Первая страница: 104302-1
- Последняя страница: 104302-6
- DOI: 10.1063/1.5006846
- Аннотация: Porous and nonporous silicon (Si) nanoparticles (NPs) prepared by ball-milling of electrochemically etched porous Si layers and crystalline Si wafers were studied as potential agents for enhancement of the proton spin relaxation in aqueous media. While nonporous Si NPs did not significantly influence the spin relaxation, the porous ones resulted in strong shortening of the transverse relaxation times. In order to investigate an effect of the electron spin density in porous Si NPs on the proton spin relaxation, we use thermal annealing of the NPs in vacuum or in air. The transverse relaxation rate of about 0.5 l/(g s) was achieved for microporous Si NPs, which were thermally annealing in vacuum to obtain the electron spin density of the order of 1017 g1. The transverse relaxation rate was found to be almost proportional to the concentration of porous Si NPs in the range from 0.1 to 20 g/l. The obtained results are discussed in view of possible biomedical applications of Si NPs as contrast agents for magnetic resonance imaging. Published by AIP Publishing. https://doi.org/10.1063/1.5006846
- Добавил в систему: Гиппиус Андрей Андреевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Journal_of_Applied_Physics_1232018104302.pdf | 1,4 МБ | 14 марта 2018 [Gippius] |