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TitleAg:TiN-Coated Polyurethane for Dry Biopotential Electrodes: From Polymer Plasma Interface Activation to the First EEG Measurements
Author(s)Pedrosa, Paulo
Fiedler, Patrique
Lopes, Cláudia
Alves, Eduardo
Barradas, Nuno P.
Haueisen, Jens
Machado, A. V.
Fonseca, Carlos
Vaz, F.
Dry electrodes
Interfacial adhesion
Plasma activation
Issue date2016
JournalPlasma Processes and Polymers
CitationPedrosa, P., Fiedler, P., Lopes, C., Alves, E., Barradas, N. P., Haueisen, J., . . . Vaz, F. (2016). Ag:TiN-Coated Polyurethane for Dry Biopotential Electrodes: From Polymer Plasma Interface Activation to the First EEG Measurements. Plasma Processes and Polymers, 13(3), 341-354. doi: 10.1002/ppap.201500063
Abstract(s)Several plasma treatments using argon, oxygen, and nitrogen are studied in order to increase the interfacial adhesion of the polyurethane/Ag:TiN system to be used as biopotential electrodes. The optimized plasma treatments conditions (100 W, 15 min, regardless of the gas) promote a steep decrease of the water contact angle values. The observed chemical and topographic alterations translate into excellent polyurethane/Ag:TiN interfacial adhesion of the plasma treated samples. The in-service validation of the proposed Ag:TiN-coated PU multipin electrodes is performed by acquiring EEG signals in parallel with the standard wet Ag/AgCl electrodes. No considerable differences are found in terms of shape, amplitude, and spectral characteristics of the signals when comparing reference wet and dry electrodes.
AccessOpen access
Appears in Collections:CDF - GRF - Artigos/Papers (with refereeing)

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