Boland Conor S
School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Glasnevin, Ireland.
RAPID Institute, Dublin City University, Dublin 9, Glasnevin, Ireland.
Adv Mater. 2025 Aug;37(34):e2503746. doi: 10.1002/adma.202503746. Epub 2025 Jun 12.
In the fable Goldilocks and The Three Bears, Goldilocks discerns between seemingly similar bowls of porridge using temperature. In the field of wearable bioelectronics, researchers do not have the same luxury of simple comparative analysis. Devices based on composite materials applying electrically conductive nanomaterial and polymer networks present a technology path towards an Internet of Things driven healthcare system. However, research progress has been obstructed by a lack of consistency with regards to the industry standard performance metric, the gauge factor (G). Paradoxically, studies cannot be compared, as no one study measures G the same. However, extrapolating the correct value for G, its intrinsic relationship between the signal linearity figure of merit outlines fieldwide performance limitations for devices, new metrics and materials selection criteria.
在《金发姑娘和三只小熊》的寓言故事中，金发姑娘通过温度来区分看似相似的几碗粥。在可穿戴生物电子学领域，研究人员却没有如此简单的比较分析条件。基于应用导电纳米材料和聚合物网络的复合材料的设备，为物联网驱动的医疗保健系统提供了一条技术路径。然而，由于缺乏行业标准性能指标——应变片系数（G）的一致性，研究进展受到了阻碍。矛盾的是，由于没有一项研究测量G的方法相同，所以各项研究无法进行比较。然而，推断出G的正确值后，其与信号线性品质因数之间的内在关系揭示了该领域设备的整体性能限制、新的指标以及材料选择标准。
