Lucet I, Filmon R, Pouliquen D, Le Jeune J J, Jallet P
Laboratoire de Biophysique, Faculté de Médecine, Angers.
Bull Assoc Anat (Nancy). 1994 Mar;78(240):57-9.
Iron oxide nanoparticles with different crystal sizes and uniform dextran coating were synthesized and analyzed by T.E.M.. The iron oxide core dimension and homogeneity of the preparation were correlated to magnetic properties. The increasing Fe/Dextran ratio used for the synthesis was well correlated with the mean diameter and the magnetic susceptibility. The comparison of the crystal size with the particle size determined by nanosizer in solution suggest that particles consist in nanoaggregates of many crystal subunits.
合成了具有不同晶体尺寸且葡聚糖涂层均匀的氧化铁纳米颗粒,并通过透射电子显微镜(T.E.M.)进行分析。氧化铁核心尺寸和制剂的均匀性与磁性相关。合成中使用的铁/葡聚糖比例增加与平均直径和磁化率密切相关。将晶体尺寸与溶液中通过纳米粒度仪测定的颗粒尺寸进行比较表明,颗粒由许多晶体亚基的纳米聚集体组成。