Biomimetic Self-Adhesive Dry EEG Electrodes

仿生自粘性干脑电图电极 这个为期三年的非假设驱动的生物医学工程项目旨在开发一种新的 皮肤表面脑电图（EEG）电极。这种新电极不需要应用 电解质;在电极放置期间能够容易地渗透头皮毛发;可以快速应用， 去除;具有低而稳定的电极阻抗;并具有非凡的自粘附能力， 头皮没有胶水或胶带。其非传统的设计灵感来自于一个生物系统（脚趾）。 壁虎），在自然环境中表现出明显的效果。我们的设计将是 通过诸如光刻和湿化学的现代制造技术来实现 合成，这保证了未来以低成本大规模生产新电极。 脑电图（EEG）为观察脑功能活动提供了一个独特的窗口 在大脑中。脑电也是无创脑机接口的关键技术 近年来引起了巨大的研究兴趣。随着脑电图从其 传统的作用，作为一个重要的大脑信号的临床实验室的神经诊断方式 在临床和非临床环境中与各种人造系统连接， 信号采集和数据处理方法得到了迅速改进。 与这些科学和技术进步相比， 头皮上的电极没有充分推进。这些手工操作的过程冗长而乏味 对于EEG技术人员来说，这是不舒服的，有时会让患者感到疼痛，因为 这需要去除具有高电阻的顶部表层。劳动力和设施 电极安装的使用成本是临床EEG研究的总成本的重要部分， 以及EEG在非临床环境中的接受（例如，家庭监测、睡眠研究，以及 脑机接口）已经受到严重阻碍。 本研究将为这一长期存在的脑电电极放置问题提供有效的解决方案 问题.我们将使用先进的机械， 加工和纳米技术，并进行两阶段的新设计验证。为了 将我们的实验室发现转化为成功的临床实践，我们还将研究应用于 GT电极到现有EEG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.