Biomimetic Self-Adhesive Dry EEG Electrodes

仿生自粘合干式脑电电极 这个为期三年的非假说驱动的生物医学工程项目旨在开发一种新的 皮肤表面脑电电极。这种新电极不需要使用 电解液；能够在电极放置过程中轻松穿透头皮头发；可以快速涂抹和 去除；具有低而稳定的电极阻抗；并具有非凡的自我附着能力 没有胶水或胶带的头皮。它的非常规设计灵感来自生物系统(脚趾 壁虎)，在自然环境中表现出明显的有效性。我们的设计将是 由现代制造技术实现，如光刻和湿化学 有望以低成本大规模生产新电极的合成。 脑电(EEG)为观察脑功能活动提供了一个独特的窗口 在大脑里。脑电也是用于非侵入性脑-计算机接口的关键技术 近年来引起了极大的研究兴趣。随着脑电从它的 在临床实验室中作为重要脑信号的神经学诊断模式的传统角色 它与临床和非临床环境中的各种人造系统对接， 信号采集和数据处理方法得到迅速改进。 与这些科技进步形成对比的是，贴上脑电波的程序 通向头皮的电极没有充分推进。这些手工程序冗长而乏味。 对于脑电技术人员来说，由于脑电技术人员 要求去除具有高电阻的顶层皮肤。劳动力和设施 电极安装的使用成本是临床EEG研究总成本的重要部分， 以及在非临床环境中接受EEG(例如，基于家庭的监测、睡眠研究和 脑机接口)严重受阻。 本研究将为解决这一长期存在的脑电电极放置问题提供有效的解决方案 有问题。我们将构建一种仿生电极，称为GT电极，使用先进的机械 加工和纳米技术，并对新设计进行两个阶段的验证。为了 将我们的实验室发现转化为成功的临床实践，我们还将研究应用的方法 GT电极连接到现有的脑电系统。

Biomimetic Self-Adhesive Dry EEG Electrodes This three-year, non-hypothesis driven, biomedical engineering project aims to develop a novel skin-surface electroencephalogram (EEG) electrode. This new electrode does not require application of electrolyte; is able to penetrate scalp hair easily during electrode placement; can be quickly applied and removed; has low and stable electrode impedance; and has an extraordinary ability to self-adhere to the scalp without glue or tape. Its unconventional design is inspired from a biological system (the toe of geckos) which has shown clear effectiveness in the natural environment. Our design will be implemented by modern manufacturing techniques such as photolithography and wet chemistry synthesis which promise future mass production of the new electrode at low cost. The electroencephalogram (EEG) provides a unique window to observe the functional activity within the brain. The EEG is also a key technology utilized in non-invasive brain-computer interfaces which have generated tremendous research interests in recent years. As the EEG evolves from its traditional role as a neurological diagnostic modality in clinical laboratories to an important brain signal that interfaces with a variety of man-made systems in both clinical and non-clinical settings, both the signal acquisition and data processing methods have improved rapidly. In contrast to these scientific and technological advances, the procedures for affixing EEG electrodes to the scalp have not advanced adequately. These manual procedures are long and tedious for EEG technicians, and are uncomfortable and sometimes painful for patients because of the requirement to remove the top skin layer which has a high electrical resistance. The labor and facility usage costs for electrode installation are a significant portion of the total cost for clinical EEG studies, and the acceptance of EEG in non-clinical settings (e.g., home based monitoring, sleep study, and brain-computer interface) has been hindered significantly. This research will provide an effective solution to this long-standing EEG electrode placement problem. We will construct a biomimetic electrode, called the GT electrode, using advanced mechanical processing and nanotechnology, and conduct a two-stage validation of the new design. In order to translate our laboratory findings to successful clinical practice, we will also investigate methods to apply GT electrodes to the existing EEG systems.