Tuning the dynamics in Fe3O4 nanoparticles for hyperthermia optimization
| Autor: | Sara A. Majetich, Sean Giblin, Hao Chen, David Billington, Edward Riordan, Christer Johansson, Jakob Blomgren |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Hyperthermia Range (particle radiation) Magnetization dynamics Materials science Physics and Astronomy (miscellaneous) Condensed matter physics Relaxation (NMR) Dynamics (mechanics) 02 engineering and technology 021001 nanoscience & nanotechnology medicine.disease 01 natural sciences Magnetic susceptibility Amplitude Magnetic hyperthermia 0103 physical sciences medicine 0210 nano-technology |
| ISSN: | 0003-6951 |
| Popis: | The AC magnetic susceptibility (ACS) of Fe3O4 nanoparticles was measured between 10 kHz and 4 MHz at different temperatures and in applied DC fields. In this frequency range, magnetostatic interactions impact magnetization dynamics even for dilute assemblies. The ACS spectrum of relaxation frequencies changes both with temperature and the addition of a small DC field. Because both the relaxation peak frequency and amplitude can be tuned with the DC field, these results could be applied to magnetic hyperthermia applications to optimize heat delivery. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|