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利用生物模拟矿化技术原位合成金属氧化物纳米颗粒。利用超分子蛋白纳米空腔结构作为反应模板矿化组装纳米材料,马脾铁蛋白作为限制性反应器控制金属离子水解、氧化还原等反应组装成单分散的纳米粒子。在碱性条件下脱铁铁蛋白限制性合成Mn氧化物纳米颗粒,通过透射电子显微镜(TEM)、EDX元素分析对产品的结构和组成进行表征,产品为球形颗粒状,直径分布在3～8nm范围。此外,采用紫外、可见吸收光谱分析对蛋白组装过程做了实验研究并对纳米材料形成机理进行了讨论。
In Situ Synthesis of Metal Oxide Nanoparticles by Biomimetic Mineralization Technology. Using supramolecular protein nanocavity structure as the reaction template mineralized assembly nanomaterials, horse spleen ferritin as a limiting reactor to control the metal ion hydrolysis, redox reaction assembled into monodisperse nanoparticles. Under alkaline conditions, the ferric oxide-limiting synthesis of Mn oxide nanoparticles, the structure and composition of the product were characterized by transmission electron microscopy (TEM), EDX elemental analysis, the product is spherical particles, the diameter distribution in 3 ~ 8nm range. In addition, UV-Vis absorption spectroscopy was used to investigate the protein assembly process and to discuss the formation mechanism of nanomaterials.