Magnetic properties of bacterial magnetosomes as potential diagnostic and therapeutic tools |
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| Affiliation: | 1. Dpto. de Electricidad y Electrónica, Universidad del País Vasco - UPV/EHU, Leioa 48940, Spain;2. Dpto. de Física Aplicada I, Universidad del País Vasco - UPV/EHU, Bilbao 48013, Spain;3. BCMaterials, Parque tecnológico de Zamudio, Derio 48160, Spain;4. Dpto. de Inmunología, Microbiología y Parasitología, Universidad del País Vasco - UPV/EHU, Leioa 48940, Spain;5. CITIMAC, Universidad de Cantabria, Santander 39005, Spain;6. SGIker, Universidad del País Vasco - UPV/EHU, Leioa 48940, Spain |
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| Abstract: | Suspensions of bacterial magnetosomes are investigated with respect to magnetic losses. Mean core diameter of about 30 nm results from TEM, XRD and magnetic analysis. Specific loss power is determined from hysteresis loops, susceptibility spectra and calorimetry with a maximum value of 960 W/g at 410 kHz and field amplitude 10 kA/m. Results may be understood by relaxation effects on hysteresis. |
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