The surface-modified Fe3O4 nanoparticles were monodispersed in an aqueous solution and did not precipitate in over 18 months.
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。
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.
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.
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。
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