摘要
分析了磁铁矿粒子的单畴临界尺寸,表明生物体内的纳米磁铁矿粒子具有单畴特性.分别讨论了石鳖、趋磁细菌及蜜蜂体内纳米磁铁矿粒子的磁畴结构及磁矩分布,探讨了与地磁场相互作用下它们的生物导航功能机制.
In this paper the critical size of single domain of nano-magnetic particles is analyze-d, and the result shows that these nano-magnetic particles in living bodies are in the range of singl-e domain. The structures of domain and the magnetic fields of nano-magnetic particles in chiton, magnetotactic bacteria and honeybee are discussed. Also, the principle of navigation due to the actqon of these particles with earth magnetic field is probed.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
2011年第2期378-382,共5页
Journal of Sichuan University(Natural Science Edition)
基金
聊城大学博士科研启动基金
关键词
生物
磁铁矿
单畴
living body, magnetite, single magnetic domain
