Preparation and characteration of superparamagnetic Fe<sub>3</sub>O<sub>4</sub> chitosan nanoparticles

GUO Li-feng; et al

doi:10.13406/j.cnki.cyxb.2010.11.046

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Preparation and characteration of superparamagnetic Fe₃O₄ chitosan nanoparticles

更新时间：2024-01-17

- Preparation and characteration of superparamagnetic Fe₃O₄ chitosan nanoparticles
- Journal of Chongqing Medical University Vol. 35, Issue 11, Pages: 1690-1692(2010)
- 作者机构：
  
  1. 重庆医科大学药学院药剂学教研室
  2. 重庆医科大学附属儿童医院骨科
  3. 重庆大学恒瑞纳米技术工作站
- 作者简介：
- 基金信息：
- DOI：10.13406/j.cnki.cyxb.2010.11.046
  CLC： R944.9
- Published：2010，
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[1]郭利锋,黄华,罗聪,杨学恒.超顺磁性四氧化三铁壳聚糖纳米粒的制备和结构表征[J].重庆医科大学学报,2010,35(11):1690-1692.

GUO Li-feng, et al. Preparation and characteration of superparamagnetic Fe₃O₄ chitosan nanoparticles. [J]. Journal of Chongqing Medical University 35(11):1690-1692(2010)
[1]郭利锋,黄华,罗聪,杨学恒.超顺磁性四氧化三铁壳聚糖纳米粒的制备和结构表征[J].重庆医科大学学报,2010,35(11):1690-1692. DOI： 10.13406/j.cnki.cyxb.2010.11.046.

GUO Li-feng, et al. Preparation and characteration of superparamagnetic Fe₃O₄ chitosan nanoparticles. [J]. Journal of Chongqing Medical University 35(11):1690-1692(2010) DOI： 10.13406/j.cnki.cyxb.2010.11.046.

摘要

目的:制备超顺磁性四氧化三铁壳聚糖纳米粒

并检测物理和磁学性质。方法:共沉淀法制备超顺磁性四氧化三铁壳聚糖纳米粒

通过透射电镜与原子力显微镜、X射线粉末衍射法、振动样品磁场计和激光衍射粒度分析仪初步分析其形态和磁性。结果:所得样品核心为四氧化三铁晶体

粒径为20～30 nm

矫顽力为0.532 oe

剩磁为1.281 8×10-5 emu

饱和磁化0.01152 emu。结论:制备的样品具有粒径小

分散性好

超顺磁性的特点

可以作为非病毒基因的载体。

Abstract

Objective:To prepare superparamagnetic Fe3O4 chitosan nanoparticle and detect its physical&magnetic properties.Methods:Superparamagnetic Fe3O4 chitosan nanoparticles were prepared through chemical coprecipitation.The sample was analysed with configuration and magnetism by transmisson electron microscopy and atomic force microscopy

X-ray powder diffraction

vibrating sample magnetometer

laser diffraction particle size analyser

respectively.Results:The core of sample was Fe3O4 crystal

with the diameter of chitosan-coated particles ranging from 20 to 30 nm

the coercive force of 0.532 oe

residual magnetism of 1.281 8×10-5 emu and saturation magnetization of 0.011 52 emu. Conclusion:Small size

good dispersibility and superparamagnetic characteristic make Fe3O4 chitosan nanoparticle as a non-viral gene carrier.

关键词

超顺磁性壳聚糖纳米粒矫顽力

Keywords

SuperparamagnetismchitosannanoparticlesCoercive force

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重庆医科大学临床学院检验科

华西医科大学药学生化教研室

重庆医科大学临床学院检验科!400016华西医科大学药学生化教研室

Key Laboratory of Medical Diagnostics of Ministry of Education,Department of Medicine

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Preparation and characteration of superparamagnetic Fe3O4 chitosan nanoparticles

DOI：10.13406/j.cnki.cyxb.2010.11.046

摘要

Abstract

关键词

Keywords

references

Preparation and characteration of superparamagnetic Fe₃O₄ chitosan nanoparticles