Université de Bordeaux, LCPO, UMR 5629, F-33600 Pessac, France.
Chem Soc Rev. 2013 Sep 7;42(17):7099-116. doi: 10.1039/c3cs60058k. Epub 2013 May 2.
Magnetic responsive materials are the topic of intense research due to their potential breakthrough applications in the biomedical, coatings, microfluidics and microelectronics fields. By merging magnetic and polymer materials one can obtain composites with exceptional magnetic responsive features. Magnetic actuation provides unique capabilities as it can be spatially and temporally controlled, and can additionally be operated externally to the system, providing a non-invasive approach to remote control. We identified three classes of magnetic responsive composite materials, according to their activation mode and intended applications, which can be defined by the following aspects. (A) Their ability to be deformed (stretching, bending, rotation) upon exposure to a magnetic field. (B) The possibility of remotely dragging them to a targeted area, called magnetic guidance, which is particularly interesting for biomedical applications, including cell and biomolecule guidance and separation. (C) The opportunity to use magnetic induction for thermoresponsive polymer materials actuation, which has shown promising results for controlled drug release and shape memory devices. For each category, essential design parameters that allow fine-tuning of the properties of these magnetic responsive composites are presented using key examples.
磁性响应材料是当前研究的热点，因为它们在生物医学、涂层、微流控和微电子等领域具有潜在的突破性应用。通过将磁性材料和聚合物材料结合在一起，可以获得具有特殊磁性响应特性的复合材料。磁性驱动具有独特的功能，因为它可以在空间和时间上进行控制，并且可以在系统外部进行操作，为远程控制提供了一种非侵入性的方法。我们根据其激活模式和预期应用将三种磁性响应复合材料进行了分类，可以通过以下几个方面来定义：(A) 在磁场作用下能够变形（拉伸、弯曲、旋转）的能力。(B) 能够远程将其拖曳到目标区域的可能性，称为磁导向，这对于生物医学应用特别有趣，包括细胞和生物分子的导向和分离。(C) 利用磁感应来驱动热响应聚合物材料的可能性，这在控制药物释放和形状记忆器件方面显示出了很有前景的结果。对于每一类，我们使用关键示例介绍了允许微调这些磁性响应复合材料性能的基本设计参数。
