Klem Michael T, Resnick Damon A, Gilmore Keith, Young Mark, Idzerda Yves U, Douglas Trevor
Department of Chemistry and Biochemistry, Center for Bio-Inspired Nanomaterials, Montana State University, Bozeman, Montana 59717, USA.
J Am Chem Soc. 2007 Jan 10;129(1):197-201. doi: 10.1021/ja0667561.
This work focuses on the synthetic control of magnetic properties of mixed oxide magnetic nanoparticles of the general formula Fe(3-x)Co(x)O(4) (x < or = 0.33) in the protein cage ferritin. In this biomimetic approach, variations in the chemical synthesis result in the formation of single-phase Fe(3-x)Co(x)O(4) alloys or intimately mixed binary phase Fe/Co oxides, modifying the chemical structure and magnetic behavior of these particles, as characterized by static and dynamic magnetization measurements and X-ray absorption spectroscopy.
这项工作聚焦于在蛋白质笼状结构铁蛋白中对通式为Fe(3-x)Co(x)O(4)(x≤0.33)的混合氧化物磁性纳米颗粒的磁性能进行合成控制。在这种仿生方法中,化学合成的变化导致形成单相Fe(3-x)Co(x)O(4)合金或紧密混合的二元相Fe/Co氧化物,改变了这些颗粒的化学结构和磁行为,这通过静态和动态磁化测量以及X射线吸收光谱进行表征。