...oparticles）［31、 羟基磷灰石纳米颗粒（Hydroxyapatite nanoparticles）［4］、 四氧化三铁纳米颗粒（Magnetic nanoparticle）t5-6］等，表． 现出低毒、大容量、易制作等优越性，尤其是其具有 明确的化学结构，使设计和研制新的更理想的载体系 统成为可能［...
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在水溶液中，经表面修饰的四氧化三铁纳米颗粒能保持超过18个月的单分散性而不沉淀。
The surface-modified Fe3O4 nanoparticles were monodispersed in an aqueous solution and did not precipitate in over 18 months.
透射电镜结果显示，四氧化三铁纳米颗粒附着在4-6nm厚的纳米线束表面形成复合物。
Transmission electron micrographs show that the composite consists of Fe(3)O(4) nanoparticles attached to the surfaces of the 4-6 nm thick nanowire bundles.
对细胞的横切面分析进一步显示，大部分的四氧化三铁纳米颗粒被细胞表面强烈地吸附并包裹了细胞。
TEM cross section analysis of the cells showed further that the Fe3O4 nanoparticles were for the most part strongly absorbed by the surfaces of the cells and coated the cells.
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