Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1802244 | Journal of Magnetism and Magnetic Materials | 2007 | 5 Pages |
Abstract
Fe-doped Au nanoparticles are ideal for biological applications over magnetic oxides due to their conjugation chemistry, optical properties, and surface chemistry. We present an AC magnetic field heating study of 8 nm Fe-doped Au nanoparticles which exhibit magnetic behavior. Magnetic heating experiments were performed on stable aqueous solutions of the nanoparticles at room temperature. The nanoparticles exhibit magnetic field heating, with a specific absorption rate (SAR) of 1.84 W/g at 40 MHz and H=100 A/m. The frequency dependence of the heating follows general trends predicted by power loss equations and is similar to traditional materials.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Andy Wijaya, Katherine A. Brown, Joshua D. Alper, Kimberly Hamad-Schifferli,