Cobalt ferrite nanoparticles (CFNPs) are emerging as a potential candidate for biomedical applications, such as magnetic hyperthermia therapy (MHT), due to their high saturation magnetisation ( M S ) and effective magnetic anisotropy constant ( K eff ) at the nanoscale. For MHT, heating efficiency depends considerably on applied AC magnetic field, particle diameter, and inter-particle interaction. Our study is aimed at developing a superparamagnetic nanosystem based on CFNPs with enhanced specific absorption rate (SAR) for advanced MHT. The CFNPs were synthesised using thermal decomposition of organometallic precursors. Transmission electron microscopy reveals a narrow size distribution of the CFNPs, with average particle sizes of 8 and 11 nm. Magnetic measurements showed high values of M S (~70 emu g −1 ) and K eff (2–3 × 10 6 erg cm −3 ). The ferromagnetic behaviour and str...

中文翻译：

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交互式钴铁氧体纳米粒子的高加热效率

钴铁氧体纳米颗粒（CFNP）由于在纳米尺度上的高饱和磁化强度（MS）和有效磁各向异性常数（K eff），正在成为生物医学应用（如磁热疗（MHT））的潜在候选者。对于MHT，加热效率在很大程度上取决于施加的交流磁场，粒径和粒子间的相互作用。我们的研究旨在开发基于CFNP的超顺磁性纳米系统，该系统具有增强的MHT的比吸收率（SAR）。CFNP是通过有机金属前体的热分解合成的。透射电子显微镜显示CFNP的粒径分布较窄，平均粒径为8和11 nm。磁测量显示出高的MS（〜70 emu g -1）和K eff（2–3×10 6 erg cm -3）。