Repository logo
 
Publication

Innovative screen-printed electrodes on cork composite substrates applied to sulfadiazine electrochemical sensing

2020-12Journal article Restricted access
Simple item page
dc.contributor.authorTavares, Ana Patricia Moreira
dc.contributor.authorSá, Maria Helena de
dc.contributor.authorSales, Goreti
dc.date.accessioned2021-09-27T14:04:37Z
dc.date.available2022-01-01T01:30:33Z
dc.date.issued2020-12
dc.description.abstractThis work reports the first use of cork as substrate to produce 3-electrode electrochemical devices, which may be very important to conduct sustainable worldwide biochemical testing in point-of-care. It consists of laminated cork covered by a thin-film of an insulating resin and printed in a 3-electrode system format. Silver ink was used to print electrical tracks and the reference electrode, while carbon ink was used to print working and auxiliary electrodes. The analytical performance of the cork-based devices was and compared to other common supports, as PET and ceramics in the form of screen-printed electrodes (SPEs). The cork-based devices displayed higher current values and better reversibility features and were able to undergo stable modification with conductive nanomaterials. They were further applied to detect sulfadiazine (SDZ), an antibiotic of human use that is also an environmental contaminant, by modifying the working electrode with a molecularly imprinted polymer (MIP) layer obtained by electropolymerization of pyrrol. The results confirmed the ability of the MIP film to detect SDZ selectively and showed reproducible increasing current signals for increasing concentrations of SDZ, from 8.0 to 186.0 μM. Direct comparison with commercial carbon SPEs showed greater sensitivity for the cork-based SPEs, with 10× lower limits of detection. Overall, cork-based devices are a valuable alternative to currently available SPEs systems, considering environment and cost features and also the analytical gains of this approach. These are especially important in times where a global biochemical testing became necessary for improved public health management.pt_PT
dc.description.sponsorshipThis work was supported by Fundação para Ciência e a Tecnologia, I.P. and FEDER (European Funding or Regional Development), via COMPETE2020-POCI (operational program for internationalization and competitiveness), through the project PTDC/AAG-TEC/5400/2014, POCI-01-0145-FEDER-016637. CeNTI – Centro de Nanotecnologia e Materiais Técnicos, Funcionais e Inteligentes is acknowledged for an initial involving the automated screen-printing and Amorim Cork industries for providing the laminated cork.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.jelechem.2020.114922pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/18569
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationPOCI-01-0145-FEDER-016637pt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S1572665720311516pt_PT
dc.subjectCork substratept_PT
dc.subjectScreen-printed electrodespt_PT
dc.subjectCarbon electrodespt_PT
dc.subjectMolecularly-imprinted polymerspt_PT
dc.subjectSulfadiazinept_PT
dc.titleInnovative screen-printed electrodes on cork composite substrates applied to sulfadiazine electrochemical sensingpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FAAG-TEC%2F5400%2F2014/PT
oaire.citation.startPage114922pt_PT
oaire.citation.titleJournal of Electroanalytical Chemistrypt_PT
oaire.citation.volume880pt_PT
oaire.fundingStream9471 - RIDTI
person.familyNameTavares Moreira
person.familyNameSá
person.familyNameFerreira Sales
person.givenNameAna Patricia
person.givenNameMaria
person.givenNameMaria Goreti
person.identifier826970
person.identifier.ciencia-id3F13-6815-3A93
person.identifier.ciencia-id0715-AF5F-8DFC
person.identifier.ciencia-idE31F-1630-42BB
person.identifier.orcid0000-0003-2868-3037
person.identifier.orcid0000-0002-4466-8382
person.identifier.orcid0000-0001-9936-7336
person.identifier.ridK-9199-2013
person.identifier.scopus-author-id36844024800
person.identifier.scopus-author-id7005174717
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication7168c35f-4b1b-4c79-b582-7982889bf3f7
relation.isAuthorOfPublication2f7fb694-efe5-4228-b458-496e18ae1a7c
relation.isAuthorOfPublicationb6d3a2d0-608a-4a92-834b-8d7b29069fef
relation.isAuthorOfPublication.latestForDiscoveryb6d3a2d0-608a-4a92-834b-8d7b29069fef
relation.isProjectOfPublication33f649e2-6003-4594-9a02-caddafd24896
relation.isProjectOfPublication.latestForDiscovery33f649e2-6003-4594-9a02-caddafd24896

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
ART_BioMark_Tavares_2020.pdf
Size:
2.81 MB
Format:
Adobe Portable Document Format
Download

Collections

ISEP – BioMark – Artigos