数字农科院2.0

Elucidating the Bioinspired Synthesis Process of Magnetosomes-Like Fe3O4 Nanoparticles

文献类型： 外文期刊

作者： Mao, Yu;Liu, Jizi;Sun, Jianfei;Zhao, Yifan;An, Yuan;Wu, Lihe;Feng, Haikao;Chen, Bo;Chen, Ruipeng;Zhang, Kai;Li, Yan;Huang, Xiao;Gu, Ning

作者机构：

关键词： bioinspired synthesis;biomedical nanomaterials;iron oxide nanoparticles;magnetosomes-like;partial oxidation

期刊名称： SMALL

ISSN： 1613-6810

年卷期： 2024 年

页码：

收录情况： SCIE（2024版） ; ; EI（2024版）

摘要： Iron oxide nanoparticles are a kind of important biomedical nanomaterials. Although their industrial-scale production can be realized by the conventional coprecipitation method, the controllability of their size and morphology remains a huge challenge. In this study, a kind of synthetic polypeptide Mms6-28 which mimics the magnetosome protein Mms6 is used for the bioinspired synthesis of Fe3O4 nanoparticles (NPs). Magnetosomes-like Fe3O4 NPs with uniform size, cubooctahedral shape, and smooth crystal surfaces are synthesized via a partial oxidation process. The Mms6-28 polypeptides play an important role by binding with iron ions and forming nucleation templates and are also preferably attached to the [100] and [111] crystal planes to induce the formation of uniform cubooctahedral Fe3O4 NPs. The continuous release and oxidation of Fe2+ from pre-formed Fe2+-rich precursors within the Mms6-28-based template make the reaction much controllable. The study affords new insights into the bioinspired- and bio-synthesis mechanism of magnetosomes.

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