Zinc ferrite (ZnFe₂O₄) nanoparticles encased fluorapatite (FAP) nanorods was successfully synthesized through hydrothermal method for biomedical applications. TEM image revealed the formation of ZnFe₂O₄ nanoparticle encased FAP nanorods with average size of about 60 ± 40 nm. Both ZnFe₂O₄ and ZnFe₂O₄–FAP samples exhibited superparamagnetic nature at 300 K with saturation magnetization (Ms) of 28.41 and 4.13 emu/g, respectively. Further, the superparamagnetic property of the ZnFe₂O₄ was investigated using langevin function and average magnetic moment per particle was found to be 606 \({\mu }_{B}\). ZnFe₂O₄–FAP nanorods exhibited enhanced colloidal stability when compared to ZnFe₂O₄ nanospheres. The cytotoxicity results confirmed the enhanced cell viability (86%) at 500 µg/mL of ZnFe₂O₄–FAP nanorods than that of ZnFe₂O₄ nanospheres (76%). The above results indicate that the ZnFe₂O₄–FAP nanorods can be considered as a potential candidate for biomedical applications.

通过水热法成功地合成了包裹有氟磷灰石（FAP）纳米棒的铁氧体（ZnFe ₂ O ₄）纳米颗粒，用于生物医学应用。TEM图像揭示了包裹ZnFe ₂ O ₄纳米颗粒的FAP纳米棒的形成，其平均大小约为60±40 nm。ZnFe ₂ O ₄和ZnFe ₂ O ₄ -FAP样品在300 K时均表现出超顺磁性，饱和磁化强度（Ms）分别为28.41和4.13 emu / g。此外，ZnFe ₂ O ₄的超顺磁性使用兰格文函数进行了研究，发现每个粒子的平均磁矩为606 \（{\ mu} _ {B} \）。与ZnFe ₂ O ₄纳米球相比，ZnFe ₂ O ₄ –FAP纳米棒表现出增强的胶体稳定性。细胞毒性结果证实，ZnFe ₂ O ₄ -FAP纳米棒在500 µg / mL时的细胞活力比ZnFe ₂ O ₄纳米球（76％）增强（86 ％）。以上结果表明，ZnFe ₂ O ₄ -FAP纳米棒可被视为生物医学应用的潜在候选者。