Computational-Design Enabled Wearable and Tunable Metamaterials via Freeform Auxetics for Magnetic Resonance Imaging.
Computational-Design Enabled Wearable and Tunable Metamaterials via Freeform Auxetics for Magnetic Resonance Imaging.
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DOI：
10.1002/advs.202400261
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发表时间：
2024-04
期刊：
影响因子：
15.1
通讯作者：
Keyin Wu;Xia Zhu;Thomas G. Bifano;Stephan W. Anderson;Xin Zhang
中科院分区：
文献类型：
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作者：
Keyin Wu;Xia Zhu;Thomas G. Bifano;Stephan W. Anderson;Xin Zhang
超材料作为一种附加技术，由于其独特的增强局部磁场的能力，在增强磁共振成像(MRI)机器的成像能力方面具有重要的前景。然而，尽管超材料具有潜力，但在磁共振成像应用中报道的超材料往往是不切实际的。这种不切实际的原因是它们主要是扁平的配置，以及它们对共振频率变化的敏感度，从而阻止了它们实现最佳性能。在这里，介绍了一种通过自由形式的生长来设计可穿戴和可调谐超材料的计算方法。提出的计算设计工具提供了一种以交互和高效的方式解决复杂的圆填充问题的方法，从而促进了以自由形状配置的可展开超材料的开发。有了这些工具，开发的超材料可以很容易地符合患者的膝盖、脚踝、头部或需要成像的身体任何部位，并同时确保最佳的共振频率，从而为超材料在临床MRI应用中的广泛采用铺平道路。
Metamaterials hold significant promise for enhancing the imaging capabilities of magnetic resonance imaging (MRI) machines as an additive technology, due to their unique ability to enhance local magnetic fields. However, despite their potential, the metamaterials reported in the context of MRI applications have often been impractical. This impracticality arises from their predominantly flat configurations and their susceptibility to shifts in resonance frequencies, preventing them from realizing their optimal performance. Here, a computational method for designing wearable and tunable metamaterials via freeform auxetics is introduced. The proposed computational-design tools yield an approach to solving the complex circle packing problems in an interactive and efficient manner, thus facilitating the development of deployable metamaterials configured in freeform shapes. With such tools, the developed metamaterials may readily conform to a patient's knee, ankle, head, or any part of the body in need of imaging, and while ensuring an optimal resonance frequency, thereby paving the way for the widespread adoption of metamaterials in clinical MRI applications.