Temporary tattoo electrodes are the most recent development in the field of cutaneous sensors. They have successfully demonstrated their performances in the monitoring of various electrophysiological signals on the skin. These epidermal electronic devices offer a conformal and imperceptible contact with the wearer while enabling good quality recordings over time. Evaluations of brain activity in clinical practice face multiple limitations, where such electrodes can provide realistic technological solutions and increase diagnostics efficiency. Here we present the performance of inkjet-printed conducting polymer tattoo electrodes in clinical electroencephalography and their compatibility with magnetoencephalography. The working mechanism of these dry sensors is investigated through the modeling of the skin/electrode impedance for better understanding of the biosignals transduction at this interface. Furthermore, a custom-made skin phantom platform demonstrates the feasibility of high-density recordings, which are essential in localizing neuropathological activities. These evaluations provide valuable input for the successful application of these ultrathin electronic tattoos sensors in multimodal brain monitoring and diagnosis.

临时纹身电极是皮肤传感器领域的最新发展。他们已成功证明了其在监测皮肤上各种电生理信号方面的性能。这些表皮电子设备可与佩戴者保持适形且不易察觉的接触，同时可随时间推移提供高质量的记录。在临床实践中对大脑活动的评估面临多个限制，其中这种电极可以提供切合实际的技术解决方案并提高诊断效率。在这里，我们介绍了在临床脑电图上喷墨印刷的导电聚合物纹身电极的性能及其与磁脑电图的兼容性。通过对皮肤/电极阻抗的建模来研究这些干式传感器的工作机制，以更好地了解此界面上的生物信号传导。此外，定制的皮肤幻影平台展示了高密度录音的可行性，这对于定位神经病理学活动至关重要。这些评估为这些超薄电子纹身传感器在多模式大脑监测和诊断中的成功应用提供了宝贵的意见。