Ag:TiN-Coated Polyurethane for Dry Biopotential Electrodes: From Polymer Plasma Interface Activation to the First EEG Measurements

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Pedrosa, P (Author) Other; Fiedler, P (Author) Other; Lopes, C (Author) Other; Alves, E (Author) Other; Barradas, NP (Author) Other; Haueisen, J (Author) Other; Machado, AV (Author) Other; C. Fonseca (Author) FEUP; Vaz, F (Author) Other

Journal

Title: Plasma Processes and Polymers

Vol. 13

Pages: 341-354

ISSN: 1612-8850

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 27 Citations

Scopus - 27 Citations

Other information

Authenticus ID: P-00G-MZ2

DOI: 10.1002/ppap.201500063

Abstract (EN): 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 (100W, 15min, 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 14