Controlled Synthesis and properties of carboxymethyl chitosan-bound magnetic nanoparticles
(0) Monodisperse Fe3O4 magnetic particles adsorpted with carboxymethyl chitosan was prepared by means of one-step co-precipitation method. The absorption properties of samples were characterized by XRD, FTIR, TG, SEM, and vibration magnetometer. The carboxymethyl chitosan-bound magnetic particles are stable and its particles highest saturate magnetism strength σs can be 39.9emμ/g. The diameter of modified nano-particles was about 24.5nm, and the weight percentage of carboxymethyl chitosan to Fe3O4 nanoparticles was estimated to be about 9 wt. ％. The results presented in this report show that magnetic particles are suitable for future nano-magnetic carrier of medicine and demonstrated that one-step co-precipitation process can be a better method for the kind of magnetic particles.
Fe3O4 Adsorption Carboxymethyl chitosan
张伟 沈辉 谢民强 张秀萍 朱燕娟 庄琳 林逸云
中山大学太阳能系统研究所,广州510275;广东工业大学物理与光电工程学院,广州510006 中山大学太阳能系统研究所,广州510275 中山大学附属第三医院,广州510630 广东工业大学物理与光电工程学院,广州510006
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）