Abstract Hybrid nanocomposites are nowadays the focus of intensive scientific and industrial research motivated by expectations from fields as diverse as microelectronics and medicine. One of the challenges faced by these materials, before getting into applications, is the development of methodologies capable of processing them in the form of thin planar nanostructures. To achieve this, bottom-up manipulation, such as the layer-by-layer approach capable of growing nano-objects while controlling position and inter-particle distances, has made possible the construction of assemblies with properties tailored on the nanoscale level. This review will summarize the new initiatives taken in the area of colloidal iron oxide nanoparticles and their arrays in polymeric matrix employing the layer-by-layer technique related research. Aiming to understand fundamental issues such as the effect of nanocomposite morphology on the collective magnetic properties, experiments and simulations performed to assess both the nanocomposite’s morphology and the corresponding magnetic signatures, will be discussed. Applications leading to future developments related with these nanostructures, as for instance chemical sensors and storage devices, will also be highlighted.

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逐层组装氧化铁基聚合物纳米复合材料

摘要 混合纳米复合材料是当今密集科学和工业研究的焦点，其动机来自微电子和医学等不同领域的期望。在进入应用之前，这些材料面临的挑战之一是开发能够以薄平面纳米结构的形式处理它们的方法。为了实现这一目标，自下而上的操作，例如能够在控制位置和粒子间距离的同时生长纳米物体的逐层方法，使得构建具有在纳米级别定制的特性的组件成为可能。本综述将总结在胶体氧化铁纳米粒子及其在聚合物基体中采用逐层技术相关研究的阵列方面采取的新举措。旨在了解基本问题，例如纳米复合材料形态对集体磁性的影响，将讨论为评估纳米复合材料的形态和相应的磁性特征而进行的实验和模拟。还将重点介绍导致与这些纳米结构相关的未来发展的应用，例如化学传感器和存储设备。