Dendrimer–dye assemblies are used as novel supramolecular nanoreactors for the formation of various gold nanostructures. The organic–inorganic hybrid systems are investigated with dynamic light scattering, UV–vis spectroscopy, and transmission electron microscopy (TEM) as well as cryo-TEM and high-resolution TEM (HRTEM). We show that the shape of the hybrid assemblies is determined by the choice and the ratio of the building blocks. Shape and size of the gold nanoparticles within the assemblies are controlled by the reducing agent. The accessible range of gold morphologies extends from small and spherical, over ellipsoidal, faceted, and large to highly anisotropic. The approach may open the way to new hybrid systems with applications in catalysis or in the biomedical field.

中文翻译：

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树状聚合物染料组合物作为金纳米结构形成的模板

树枝状聚合物-染料组装体被用作新型超分子纳米反应器，用于形成各种金纳米结构。通过动态光散射，紫外可见光谱，透射电子显微镜（TEM）以及低温TEM和高分辨率TEM（HRTEM）对有机-无机杂化系统进行了研究。我们表明，混合组件的形状由构件的选择和比率决定。组件中金纳米颗粒的形状和大小由还原剂控制。金形态的可及范围从小球形，椭圆形，刻面到大到高度各向异性。该方法可以为在催化或生物医学领域中应用的新型混合系统打开道路。