生命体中的磁性纳米颗粒

MAGNETIC NANO-PARTICLES IN THE LIVING BODY

主要介绍了国内外对生命体中的磁性纳米粒子的研究工作 .70年代发现的分布在趋磁细菌体内的磁性纳米颗粒 ,将生物与磁的关系确切地联系起来 .文章简要介绍了趋磁细菌内部的磁性颗粒的晶体形貌、排列方式等等 .同时还介绍了石鳖齿舌中的磁性纳米颗粒的形成过程 ,及蜜蜂腹部的超顺磁磁性颗粒的分布与神经系统的联系 ,介绍了“磁接受器”的概念与理论模型 .最后提到人类大脑中也具有磁性纳米颗粒 ,并且探讨了它们可能具有的功能 .

An overview is given of the research on magnetic nano particle in the living body. Magnetic nano particles found in the body of magnetic bacteria in the 1970's provide definite proof of the relationship between magnetite and biology. We briefly describe the configuration and arrangement of magnetic nano particles in magnetic bacteria, and the mineralization process of magnetic nano particles in the radula teeth of chiton, as well as the relationship between supermagnetic particles and the neural system in the abdomen of honeybees, on which the concept and model of “magnetic acceptors”has been built. Finally, magnetic nano particles in the human cerebrum and their possible functions are discussed.