Covalent grafting and electrostatic-driven assembly have been two strategies in constructing well-defined polyoxometalate (POM) assemblies to produce specific morphologies and desirable properties. The modification of anionic counter-ions of amphiphilic compounds in POM-surfactant hybrid systems is still unexploited. Herein, we report the co-assembly of a synthetic double-tailed magnetic surfactant (MagSurf), (C₁₈)₂C₂N⁺[FeCl₄]⁻, and POM, {Mo₇₂Fe₃₀}. The magnetic aggregate (POM/MagSurf) results from the building up hierarchical structures at a time-dependent interface. In this construct, both the MagSurfs and {Mo₇₂Fe₃₀} POMs contribute to and mutually strengthen the magnetization of the designed magnetic assembles. Interestingly, the POM/MagSurf aggregates are compatible with aqueous mixtures and successfully employed to serve as magnetic transporting vehicles to anchor and deliver a protein molecule, myoglobin (Mb). Upon applying a magnetic field (0.3 T), the magnetic aggregates induced a directional migration and enrichment of the Mb protein (71–90%). During this process, the protein/POM/MagSurf complexes exhibited strong interactions facilitating stable anchoring and efficient enrichment of the Mb.

共价接枝和静电驱动组装已成为构建定义明确的多金属氧酸盐（POM）组装以产生特定形态和所需特性的两种策略。在POM-表面活性剂混合体系中两亲化合物的阴离子抗衡离子的修饰仍未开发。在此，我们报告了合成的双尾磁性表面活性剂（MagSurf）（C ₁₈）₂ C ₂ N ⁺ [FeCl ₄ ] ^-和POM {Mo ₇₂ Fe ₃₀ }的组装。磁性聚集体（POM / MagSurf）是由在依赖时间的界面上建立分层结构而产生的。在此构造中，MagSurfs和{Mo ₇₂Fe ₃₀ } POM有助于并相互增强设计的磁性组件的磁化强度。有趣的是，POM / MagSurf聚集体与水性混合物兼容，并成功地用作磁性转运载体，以锚定并输送蛋白质分子肌红蛋白（Mb）。施加磁场（0.3 T）后，磁性聚集体诱导了Mb蛋白的定向迁移和富集（71–90％）。在此过程中，蛋白质/ POM / MagSurf复合物表现出强大的相互作用，有利于Mb的稳定锚定和有效富集。