CAJ | 학술논문

以柠檬酸为改性剂，制备水基Fe3O4磁性纳米粒子，基于静电自组装作用，使壳聚糖分子在水溶液中包覆Fe3O4纳米晶粒，获得壳聚糖／Fe3O4复合纳米颗粒液溶胶。扫描电子显微镜（SEM）分析结果表明，复合纳米颗粒平均粒径为49．0nm，标准差为11．0nm。X射线衍射（XRD）和红外光谱（FT-IR）分析结果表明，复合纳米颗粒由壳聚糖分子和Fe3O4晶体粒子构成。
이저몽산위개성제，제비수기Fe3O4자성납미입자，기우정전자조장작용，사각취당분자재수용액중포복Fe3O4납미정립，획득각취당／Fe3O4복합납미과립액용효。소묘전자현미경（SEM）분석결과표명，복합납미과립평균립경위49．0nm，표준차위11．0nm。X사선연사（XRD）화홍외광보（FT-IR）분석결과표명，복합납미과립유각취당분자화Fe3O4정체입자구성。
The magnetic fluid was prepared by modifying the surface of F% 04 nanoparticles with citric acid. These Fe3O4 nanoparticles encapsulated by chitosan molecules through electrostatic force could be readily dispersed in aqueous solution. It was found in the SEM image that the aver- age diameter of nanocomplex was 49.0 nm, standard deviation was 11.0 nmo The particles prepared from chitosan and Fe3O4 were characterized by XRD and FF- IR nanocomplex analysis.