Szczegóły publikacji
Opis bibliograficzny
Synthesis of manganese zinc ferrite nanoparticles in medical-grade silicone for MRI applications / Joshua A. Stoll, Dorota LACHOWICZ, Angelika KMITA, Marta GAJEWSKA, Marcin SIKORA, Katarzyna BERENT, Marek PRZYBYLSKI, Stephen E. Russek, Zbigniew J. Celinski, Janusz H. Hankiewicz // International Journal of Molecular Sciences [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1422-0067. — 2023 — vol. 24 iss. 6 art. no. 5685, s. 1–15. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 12–15, Abstr. — Publikacja dostępna online od: 2023-03-16
Autorzy (10)
- Stoll Joshua A.
- AGHLachowicz Dorota
- AGHKmita Angelika
- AGHGajewska Marta
- AGHSikora Marcin
- AGHBerent Katarzyna
- AGHPrzybylski Marek
- Russek Stephen E.
- Celinski Zbigniew J.
- Hankiewicz Janusz H.
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 146551 |
|---|---|
| Data dodania do BaDAP | 2023-05-22 |
| Tekst źródłowy | URL |
| DOI | 10.3390/ijms24065685 |
| Rok publikacji | 2023 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | International Journal of Molecular Sciences |
Abstract
The aim of this project is to fabricate hydrogen-rich silicone doped with magnetic nanoparticles for use as a temperature change indicator in magnetic resonance imaging-guided (MRIg) thermal ablations. To avoid clustering, the particles of mixed MnZn ferrite were synthesized directly in a medical-grade silicone polymer solution. The particles were characterized by transmission electron microscopy, powder X-ray diffraction, soft X-ray absorption spectroscopy, vibrating sample magnetometry, temperature-dependent nuclear magnetic resonance relaxometry (20 °C to 60 °C, at 3.0 T), and magnetic resonance imaging (at 3.0 T). Synthesized nanoparticles were the size of 4.4 nm ± 2.1 nm and exhibited superparamagnetic behavior. Bulk silicone material showed a good shape stability within the study’s temperature range. Embedded nanoparticles did not influence spin–lattice relaxation, but they shorten the longer component of spin–spin nuclear relaxation times of silicone’s protons. However, these protons exhibited an extremely high r2* relaxivity (above 1200 L s−1 mmol−1) due to the presence of particles, with a moderate decrease in the magnetization with temperature. With an increased temperature decrease of r2*, this ferro–silicone can be potentially used as a temperature indicator in high-temperature MRIg ablations (40 °C to 60 °C).