Temporary-tattoo for long-term high fidelity biopotential recordings.
Temporary-tattoo for long-term high fidelity biopotential recordings.
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DOI：
10.1038/srep25727
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发表时间：
2016-05-12
影响因子：
4.6
通讯作者：
Hanein Y
中科院分区：
文献类型：
--
作者：
Bareket L;Inzelberg L;Rand D;David-Pur M;Rabinovich D;Brandes B;Hanein Y
肌电图是一种广泛用于映射肌肉激活的非侵入性方法。几十年来，人们普遍认为，干金属电极建立不良的电极-皮肤接触，使他们不切实际的皮肤肌电图应用。因此，凝胶电极是肌电图的标准，其使用几乎完全限于实验室环境。在这里，我们提出了新的干电极，表现出出色的肌电图记录沿着与优秀的用户舒适度。电极是使用丝网印刷的碳墨在软支持。电极的一致性有助于建立与皮肤的直接接触，使凝胶的使用成为多余。等离子体聚合的3，4-乙撑二氧噻吩被用来提高电极的阻抗。循环伏安法测量显示，在潮湿条件下，电极电容增加了100倍。阻抗测量显示人体皮肤上的电极阻抗降低因子为10。从手和从脸的长期肌电图记录的电极的适用性被证明。所提出的电极非常适合于许多应用，例如脑机接口、肌肉诊断、损伤后康复和游戏。
Electromyography is a non-invasive method widely used to map muscle activation. For decades, it was commonly accepted that dry metallic electrodes establish poor electrode-skin contact, making them impractical for skin electromyography applications. Gelled electrodes are therefore the standard in electromyography with their use confined, almost entirely, to laboratory settings. Here we present novel dry electrodes, exhibiting outstanding electromyography recording along with excellent user comfort. The electrodes were realized using screen-printing of carbon ink on a soft support. The conformity of the electrodes helps establish direct contact with the skin, making the use of a gel superfluous. Plasma polymerized 3,4-ethylenedioxythiophene was used to enhance the impedance of the electrodes. Cyclic voltammetry measurements revealed an increase in electrode capacitance by a factor of up to 100 in wet conditions. Impedance measurements show a reduction factor of 10 in electrode impedance on human skin. The suitability of the electrodes for long-term electromyography recordings from the hand and from the face is demonstrated. The presented electrodes are ideally-suited for many applications, such as brain-machine interfacing, muscle diagnostics, post-injury rehabilitation, and gaming.