Publicação
Dry electrodes for surface electromyography based on architectured titanium thin films
| Resumo: | Electrodes of silver/silver chloride (Ag/AgCl) are dominant in clinical settings for surface electromyography (sEMG) recordings. These electrodes need a conductive electrolyte gel to ensure proper performance, which dries during long-term measurements inhibiting the immediate electrode’s reuse and is often linked to skin irritation episodes. To overcome these drawbacks, a new type of dry electrodes based on architectured titanium (Ti) thin films were proposed in this work. The architectured microstructures were zigzags, obtained with different sputtering incidence angles (α), which have been shown to directly influence the films’ porosity and electrical conductivity. The electrodes were prepared using thermoplastic polyurethane (TPU) and stainless-steel (SS) substrates, and their performance was tested in male volunteers (athletes) by recording electromyography (EMG) signals, preceded by electrode-skin impedance measurements. In general, the results showed that both SS and TPU dry electrodes can be used for sEMG recordings. While SS electrodes almost match the signal quality parameters of reference electrodes of Ag/AgCl, the performance of electrodes based on TPU functionalized with a Ti thin film still requires further improvements. Noteworthy was the clear increase of the signal to noise ratios when the thin films’ microstructure evolved from normal growth towards zigzag microstructures, meaning that further tailoring of the thin film microstructure is a possible route to achieve optimized performances. Finally, the developed dry electrodes are reusable and allow for multiple EMG recordings without being replaced. |
|---|---|
| Autores principais: | Rodrigues, Marco S. |
| Outros Autores: | Fiedler, Patrique; Küchler, Nora; Domingues, Rui P.; Lopes, Cláudia; Borges, Joel; Haueisen, Jens; Vaz, F. |
| Assunto: | biopotential electrodes dry electrodes electromyography thin films magnetron sputtering glancing angle deposition |
| Ano: | 2020 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1866877091361849344 |
|---|---|
| author | Rodrigues, Marco S. |
| author2 | Fiedler, Patrique Küchler, Nora Domingues, Rui P. Lopes, Cláudia Borges, Joel Haueisen, Jens Vaz, F. |
| author2_role | author author author author author author author |
| author_facet | Rodrigues, Marco S. Fiedler, Patrique Küchler, Nora Domingues, Rui P. Lopes, Cláudia Borges, Joel Haueisen, Jens Vaz, F. |
| author_role | author |
| contributor_name_str_mv | Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Rodrigues, Marco S.\"},{\"Person.name\":\"Fiedler, Patrique\"},{\"Person.name\":\"Küchler, Nora\"},{\"Person.name\":\"Domingues, Rui P.\"},{\"Person.name\":\"Lopes, Cláudia\"},{\"Person.name\":\"Borges, Joel\"},{\"Person.name\":\"Haueisen, Jens\"},{\"Person.name\":\"Vaz, F.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Rodrigues, Marco S. Fiedler, Patrique Küchler, Nora Domingues, Rui P. Lopes, Cláudia Borges, Joel Haueisen, Jens Vaz, F. |
| datacite.date.Accepted.fl_str_mv | 2020-05-05T00:00:00Z |
| datacite.date.available.fl_str_mv | 2020-05-18T09:08:06Z |
| datacite.date.embargoed.fl_str_mv | 2020-05-18T09:08:06Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | biopotential electrodes dry electrodes electromyography thin films magnetron sputtering glancing angle deposition |
| datacite.titles.title.fl_str_mv | Dry electrodes for surface electromyography based on architectured titanium thin films |
| dc.contributor.none.fl_str_mv | Universidade do Minho |
| dc.creator.none.fl_str_mv | Rodrigues, Marco S. Fiedler, Patrique Küchler, Nora Domingues, Rui P. Lopes, Cláudia Borges, Joel Haueisen, Jens Vaz, F. |
| dc.date.Accepted.fl_str_mv | 2020-05-05T00:00:00Z |
| dc.date.available.fl_str_mv | 2020-05-18T09:08:06Z |
| dc.date.embargoed.fl_str_mv | 2020-05-18T09:08:06Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/65393 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Multidisciplinary Digital Publishing Institute |
| dc.rights.cclincense.fl_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.rights.rights.copyright.fl_str_mv | openAccess |
| dc.subject.none.fl_str_mv | biopotential electrodes dry electrodes electromyography thin films magnetron sputtering glancing angle deposition |
| dc.title.fl_str_mv | Dry electrodes for surface electromyography based on architectured titanium thin films |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Electrodes of silver/silver chloride (Ag/AgCl) are dominant in clinical settings for surface electromyography (sEMG) recordings. These electrodes need a conductive electrolyte gel to ensure proper performance, which dries during long-term measurements inhibiting the immediate electrode’s reuse and is often linked to skin irritation episodes. To overcome these drawbacks, a new type of dry electrodes based on architectured titanium (Ti) thin films were proposed in this work. The architectured microstructures were zigzags, obtained with different sputtering incidence angles (α), which have been shown to directly influence the films’ porosity and electrical conductivity. The electrodes were prepared using thermoplastic polyurethane (TPU) and stainless-steel (SS) substrates, and their performance was tested in male volunteers (athletes) by recording electromyography (EMG) signals, preceded by electrode-skin impedance measurements. In general, the results showed that both SS and TPU dry electrodes can be used for sEMG recordings. While SS electrodes almost match the signal quality parameters of reference electrodes of Ag/AgCl, the performance of electrodes based on TPU functionalized with a Ti thin film still requires further improvements. Noteworthy was the clear increase of the signal to noise ratios when the thin films’ microstructure evolved from normal growth towards zigzag microstructures, meaning that further tailoring of the thin film microstructure is a possible route to achieve optimized performances. Finally, the developed dry electrodes are reusable and allow for multiple EMG recordings without being replaced. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://prod-dspace.uminho.pt/bitstreams/49c73c78-fb5f-44e1-afdc-ffcd82d22734/download |
| id | rum_829eabbf249b8fffe7cdcfadccbd43c7 |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/65393 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/65393 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Rodrigues, Marco S. Fiedler, Patrique Küchler, Nora Domingues, Rui P. Lopes, Cláudia Borges, Joel Haueisen, Jens Vaz, F. |
| publishDate | 2020 |
| publisher.none.fl_str_mv | Multidisciplinary Digital Publishing Institute |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engMultidisciplinary Digital Publishing InstituteporElectrodes of silver/silver chloride (Ag/AgCl) are dominant in clinical settings for surface electromyography (sEMG) recordings. These electrodes need a conductive electrolyte gel to ensure proper performance, which dries during long-term measurements inhibiting the immediate electrode’s reuse and is often linked to skin irritation episodes. To overcome these drawbacks, a new type of dry electrodes based on architectured titanium (Ti) thin films were proposed in this work. The architectured microstructures were zigzags, obtained with different sputtering incidence angles (α), which have been shown to directly influence the films’ porosity and electrical conductivity. The electrodes were prepared using thermoplastic polyurethane (TPU) and stainless-steel (SS) substrates, and their performance was tested in male volunteers (athletes) by recording electromyography (EMG) signals, preceded by electrode-skin impedance measurements. In general, the results showed that both SS and TPU dry electrodes can be used for sEMG recordings. While SS electrodes almost match the signal quality parameters of reference electrodes of Ag/AgCl, the performance of electrodes based on TPU functionalized with a Ti thin film still requires further improvements. Noteworthy was the clear increase of the signal to noise ratios when the thin films’ microstructure evolved from normal growth towards zigzag microstructures, meaning that further tailoring of the thin film microstructure is a possible route to achieve optimized performances. Finally, the developed dry electrodes are reusable and allow for multiple EMG recordings without being replaced.application/pdfporDry electrodes for surface electromyography based on architectured titanium thin filmsRodrigues, Marco S.Fiedler, PatriqueKüchler, NoraDomingues, Rui P.Lopes, CláudiaBorges, JoelHaueisen, JensVaz, F.HostingInstitutionOrganizationalUniversidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptISSNIsPartOf1996-1944DOIIsPartOf10.3390/ma130921352020-05-18T09:08:06Z2020-05-052020-05-14T13:56:20Z2020-05-05T00:00:00ZHandlehttps://hdl.handle.net/1822/65393http://purl.org/coar/access_right/c_abf2open accessbiopotential electrodesdry electrodeselectromyographythin filmsmagnetron sputteringglancing angle deposition5956139 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal article2020-05-05http://creativecommons.org/licenses/by/4.0/openAccesshttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://prod-dspace.uminho.pt/bitstreams/49c73c78-fb5f-44e1-afdc-ffcd82d22734/download |
| spellingShingle | Dry electrodes for surface electromyography based on architectured titanium thin films Rodrigues, Marco S. biopotential electrodes dry electrodes electromyography thin films magnetron sputtering glancing angle deposition |
| status | SINGLETON |
| subject.fl_str_mv | biopotential electrodes dry electrodes electromyography thin films magnetron sputtering glancing angle deposition |
| title | Dry electrodes for surface electromyography based on architectured titanium thin films |
| title_full | Dry electrodes for surface electromyography based on architectured titanium thin films |
| title_fullStr | Dry electrodes for surface electromyography based on architectured titanium thin films |
| title_full_unstemmed | Dry electrodes for surface electromyography based on architectured titanium thin films |
| title_short | Dry electrodes for surface electromyography based on architectured titanium thin films |
| title_sort | Dry electrodes for surface electromyography based on architectured titanium thin films |
| topic | biopotential electrodes dry electrodes electromyography thin films magnetron sputtering glancing angle deposition |
| topic_facet | biopotential electrodes dry electrodes electromyography thin films magnetron sputtering glancing angle deposition |
| url | https://hdl.handle.net/1822/65393 |
| visible | 1 |