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Advisor(s)
Abstract(s)
Wet electrodes rely on conductive electrolyte gel for proper perfor-
mance, usually presenting high setup time and being disposable or requiring
time-consuming cleaning methods. Skin irritation and signal quality deterioration
are some of the problems that may occur with these electrodes. Therefore, to
overcome these drawbacks, 3D printed bases using Fused Deposition Modelling
(FDM) with Polylactic acid (PLA), Polyurethane (PU) and Cellulose filaments
were functionalized with titanium (Ti) and titanium-nitride (TiN) thin films and
dopped with copper (Cu). The electrodes, implemented using different diameters,
were used to record electromyography (EMG) signals proceeded by biostimula-
tion sessions to access their electrical and mechanical characteristics and com-
pare them to that of commercial AgCl/Ag electrodes. The results show that TiN
and TiNCu0.45 dry electrodes present results similar to wet AgCl/Ag electrodes
for data acquisition. To be comparable to usual carbon electrodes for muscle
stimulation, they need some conductivity improvements to lower the necessary
voltage. Besides, the endurance of the thin films must be enhanced as well as the
adhesion to the polymer.
Description
Keywords
Dry electrodes Signal acquisition Biostimulation sEMG Thin film
Citation
Conselheiro, Raul; Lopes, C.; Azevedo, Nelson; Leitao, Paulo; Agulhari, Cristiano; Veloso, H.; Vaz, F.; Gonçalves, João Lucas; Franco, Tiago; Sestrem de Oliveira, Leonardo (2023). Titanium based dry electrodes for biostimulation and data acquisition. In 19th International Symposium on Distributed Computing and Artificial Intelligence. L'Aquila, Italy. 583, p. 111-120
Publisher
Springer