Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/71215
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Gonçalves, Sandra Beatriz Tomé | por |
dc.contributor.author | Loureiro, A. M. | por |
dc.contributor.author | Fernandes, H. C. | por |
dc.contributor.author | Pimenta, Sara Filomena Ribeiro | por |
dc.contributor.author | Ribeiro, J. F. | por |
dc.contributor.author | Correia, J. H. | por |
dc.date.accessioned | 2021-04-01T15:58:42Z | - |
dc.date.issued | 2018-12 | - |
dc.identifier.issn | 1057-7157 | - |
dc.identifier.uri | https://hdl.handle.net/1822/71215 | - |
dc.description.abstract | This paper presents a simple micromachining process to fabricate 2-D devices consisting of up to 20-mm-long shafts for neural applications. The manufacturing technology was mainly based on traditional blade dicing, normally used for wafers individualization into chips/devices in semiconductor and micro-electro-mechanical systems technologies. Here, it is demonstrated how a fully mechanical cutting technology is applied to the successful manufacture of challenging components with high-aspect ratio devices up to 41:1. Several other aspect ratio shafts (lengths varying between 5 and 20 mm) were produced and tested, for both the single-shaft and array devices. Mechanical characterization tests evaluated the devices robustness. Compressive strength tests for single-shaft 20-mm long shafts showed good longitudinal resistance to fracture, withstanding 28 N before breaking. Longitudinal forces play the key role while implanting the shaft inside the brain. Moreover, it was measured the load required to implant and extract 20-mm five-shaft array devices in two different mediums: 0.6% agar gel and calf cadaver brain. Maximum average insertion forces were 23 and 59 mN per shaft at 180 mm.min(-1) for agar and cadaver brain mediums, respectively. Overall, by enhancing the performance of a purely mechanical machining tool, the micro manufacture of high-aspect ratio silicon shafts for neuroscience applications was demonstrated. | por |
dc.description.sponsorship | S. B. Goncalves is supported by the Portuguese Foundation for Science and Technology (FCT) under grant PD/BD/105931/2014, MIT Portugal Program. This work is supported by FCT with the reference project UID/EEA/04436/2013, by FEDER funds through the COMPETE 2020 -Programa Operacional Competitividade e Internacionalizacao (POCI) with the reference project POCI-01-0145-FEDER-006941 and project PTDC/CTM-REF/28406/2017 (02/SAICT/2017). ANI also supports this work through the Brain-Lighting project by FEDER funds through Portugal 2020, COMPETE 2020 with the reference POCI-01-0247-FEDER-003416. | por |
dc.language.iso | eng | por |
dc.publisher | IEEE | por |
dc.relation | info:eu-repo/grantAgreement/FCT/PD/PD%2FBD%2F105931%2F2014/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147325/PT | por |
dc.relation | PTDC/CTM-REF/28406/2017 | por |
dc.rights | restrictedAccess | por |
dc.subject | Biosensors | por |
dc.subject | Blade cutting | por |
dc.subject | IC-compatible manufacturing | por |
dc.subject | Mechanical implantation | por |
dc.subject | High-aspect ratio devices | por |
dc.subject | 2D neural silicon shafts | por |
dc.title | High-aspect ratio Si neural shafts: fabrication and brain implantation | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
oaire.citationStartPage | 1097 | por |
oaire.citationEndPage | 1104 | por |
oaire.citationIssue | 6 | por |
oaire.citationVolume | 27 | por |
dc.date.updated | 2021-03-31T16:39:31Z | - |
dc.identifier.eissn | 1948-0158 | - |
dc.identifier.doi | 10.1109/JMEMS.2018.2868229 | por |
dc.date.embargo | 10000-01-01 | - |
dc.subject.wos | Science & Technology | - |
sdum.export.identifier | 10226 | - |
sdum.journal | Journal of Microelectromechanical Systems | por |
Aparece nas coleções: | CMEMS - Artigos em revistas internacionais/Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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SBG_JMEMS.pdf Acesso restrito! | 754,18 kB | Adobe PDF | Ver/Abrir |