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Carbon nanotube field effect transistor biosensor for the detection of toxins in seawater

2017Journal article Restricted access
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dc.contributor.authorMarques, Inês
dc.contributor.authorCosta, João Pinto da
dc.contributor.authorJustino, Celine
dc.contributor.authorSantos, Patrícia
dc.contributor.authorDuarte, Kátia
dc.contributor.authorFreitas, Ana
dc.contributor.authorCardoso, Susana
dc.contributor.authorDuarte, Armando
dc.contributor.authorRocha-Santos, Teresa
dc.date.accessioned2017-12-18T19:54:24Z
dc.date.available2017-12-18T19:54:24Z
dc.date.issued2017
dc.description.abstractDisposable field effect transistors (FET) biosensors (bio-FET) based on carbon nanotubes were fabricated for detection of domoic acid (DA), which belongs to the group of biotoxins associated with the amnesic shellfish poisoning. The analytical results obtained with the bio-FET were compared with those obtained with a traditional methodology (enzyme-linked immunosorbent assay) in order to validate the bio-FET for DA detection. Standard solutions of DA with concentrations between 10 and 500 ng L−1 were tested in order to construct the calibration curve, where five bio-FET were used for reproducibility estimation and two analytical measurements were performed for each bio-FET for repeatability estimation. Ten spiked artificial seawater samples were used to validate the bio-FET. The obtained reproducibility (0.52–1.43%), repeatability (0.57–1.27%), limit of detection (10 ng L−1) and recovery range (92.3–100.3%) reveal an adequate analytical performance of the bio-FET for the detection of DA in environmental samples such as seawater samples.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMarques, I., da Costa, J. P., Justino, C., Santos, P., Duarte, K., Freitas, A., . . . Rocha-Santos, T. (2017). Carbon nanotube field effect transistor biosensor for the detection of toxins in seawater. International Journal of Environmental Analytical Chemistry, 97(7), 597-605pt_PT
dc.identifier.doi10.1080/03067319.2017.1334056pt_PT
dc.identifier.eid85019759859
dc.identifier.eissn1029-0397
dc.identifier.issn0306-7319
dc.identifier.urihttp://hdl.handle.net/10400.14/23732
dc.identifier.wos000405810200001
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherTaylor & Francispt_PT
dc.relationRainwater: Source of domestic water after removal of contaminants with nanoparticles
dc.relationMonitoring of marine environment contaminants in real-time by an autonomous biosensor platform
dc.subjectBiosensorpt_PT
dc.subjectBiotoxinpt_PT
dc.subjectDomoic acidpt_PT
dc.subjectField effect transistorpt_PT
dc.subjectSeawaterpt_PT
dc.subjectSingle-walled carbon nanotubespt_PT
dc.titleCarbon nanotube field effect transistor biosensor for the detection of toxins in seawaterpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleRainwater: Source of domestic water after removal of contaminants with nanoparticles
oaire.awardTitleMonitoring of marine environment contaminants in real-time by an autonomous biosensor platform
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F95961%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBPD%2F102452%2F2014/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F00407%2F2013%2FCP1162%2FCT0023/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAMB%2F50017%2F2013/PT
oaire.citation.endPage605pt_PT
oaire.citation.issue7pt_PT
oaire.citation.startPage597pt_PT
oaire.citation.titleInternational Journal of Environmental Analytical Chemistrypt_PT
oaire.citation.volume97pt_PT
oaire.fundingStreamSFRH
oaire.fundingStreamOE
oaire.fundingStreamSFRH
oaire.fundingStreamInvestigador FCT
oaire.fundingStream5876
person.familyNamePinto da Costa
person.familyNameSantos
person.familyNameReis Duarte
person.familyNameCardoso Freitas Lopes de Freitas
person.familyNameCardoso de Freitas
person.familyNameDuarte
person.familyNameRocha-Santos
person.givenNameJoao
person.givenNamePatrícia
person.givenNameKátia
person.givenNameAna Cristina
person.givenNameSusana
person.givenNameArmando
person.givenNameTeresa
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person.identifier.ridK-6027-2015
person.identifier.ridB-6199-2013
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person.identifier.scopus-author-id55175893400
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project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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