In this study, we investigate the magnetic induction heating induced in a conducting polymer (CP) under alternative magnetic fields (AMFs). Experimental results and numerical simulations have proved that the magneto-thermal conversion of the CP is caused by the induced eddy current, which is related to the shape and intensity of the applied external AMF, and the intrinsic electrical conductivity, macrostructure and microstructure of the CP. By employing various fabrication methods, specific temperature distribution and control of thermal field within conducting polymer films and aerogels could be achieved. To exploit the potential of magnetic induction heating in CP for biomedical applications, we designed a conducting polymer aerogel-based self-adaptive heat patch and demonstrated its AMF-enabled localized heating of skin. In addition to the thermal ablation of tumor cells via magneto-thermal conversion of the CP, the promotion of neuronal differentiation at mild temperature by noninvasive magneto-electrical stimulation has also been demonstrated to be an effective strategy for tissue engineering.

中文翻译：

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用于生物医学应用的导电聚合物的磁感应加热


在这项研究中，我们研究了交变磁场 (AMF) 下导电聚合物 (CP) 中感应的磁感应加热。实验结果和数值模拟证明CP的磁热转换是由感应涡流引起的，这与所施加的外部AMF的形状和强度以及CP的本征导电性、宏观结构和微观结构有关。通过采用各种制造方法，可以实现导电聚合物薄膜和气凝胶内特定的温度分布和热场控制。为了开发磁感应加热在生物医学应用中的潜力，我们设计了一种基于导电聚合物气凝胶的自适应热贴片，并展示了其支持 AMF 的皮肤局部加热。除了通过CP的磁热转换热消融肿瘤细胞外，通过无创磁电刺激在温和温度下促进神经元分化也被证明是组织工程的有效策略。