期刊
ORGANIC ELECTRONICS
卷 18, 期 -, 页码 89-94出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2014.12.017
关键词
Inkjet printing; Surface electromyography; Silver nanoparticles
资金
- Fondazione Istituto Italiano di Tecnologia
- Politronica Inkjet Printing S.r.l.
Recording of surface ElctroMyoGraphic (sEMG) signal represents a challenge, due to the nature both stochastic and deterministic of the biopotential. The sEMG signal results from the superimposed activity of a high number of motor units, artifacts, and background noise. Among the different non-invasive techniques to measure the muscle electrical activity, recent studies showed how High-Density surface EMG (HD-sEMG) constitutes a very effective tool. HD-sEMG uses multiple closely spaced electrodes overlying a restricted area of the skin and provides high definition temporal and spatial information on muscle activity. To optimize the features of the current devices for HD-sEMG signal detection, this paper reports on the realization of the first inkjet printed HD electrode matrix. The matrix was built by inkjet printing of a commercial silver-based ink on a flexible Kapton(R) substrate. While bringing about all advantages of drop-on-demand inkjet technology, such as rapid prototyping and simple CAD re-desing of customizable devices, the printed matrix produces interesting electrical results in terms of resolution, resistance and electrode-skin contact impedance. Electrode-skin impedance obtained with our measurement setup was indeed always in line, while not better than the one obtained with commercial electrodes. (C) 2014 Elsevier B.V. All rights reserved.
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