You are in the accessibility menu

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/68087
Full metadata record
DC FieldValueLanguage
dc.contributor.authorVenancio, Everaldo C.-
dc.contributor.authorConsolin Filho, Nelson-
dc.contributor.authorConstantino, Carlos J. L.-
dc.contributor.authorMartin-Neto, Ladislau-
dc.contributor.authorMattoso, Luiz H. C.-
dc.date.accessioned2014-05-27T11:21:15Z-
dc.date.accessioned2016-10-25T18:20:22Z-
dc.date.available2014-05-27T11:21:15Z-
dc.date.available2016-10-25T18:20:22Z-
dc.date.issued2005-01-01-
dc.identifierhttp://dx.doi.org/10.1590/S0103-50532005000100004-
dc.identifier.citationJournal of the Brazilian Chemical Society, v. 16, n. 1, p. 24-30, 2005.-
dc.identifier.issn0103-5053-
dc.identifier.urihttp://hdl.handle.net/11449/68087-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/68087-
dc.description.abstractThe interaction between humic substances and poly(o-ethoxyaniline) (POEA), a conducting polymer, was investigated for both solution and self-assembled films. The results have shown that the humic substances induce a doping of POEA by protonation, as indicated by UV-Vis and Raman spectroscopies. The atomic force microscopy (AFM) studies on the self-assembled films have shown that the average roughness of the polymer film has increased after exposing it to humic substances (fulvic and humic acids), consistent with the interaction between POEA and humic substances. However, this change in morphology is reversible by washing the films with water in agreement with the electrical data allowing using this system in sensor applications. Here, the sensor formed by an array of different sensing units was able to detect and distinguish humic substances in aqueous solution, as shown by multivariate analysis (principal component analysis). The motivation to detect humic substance comes due to its importance in terms of quality control of water or soil. ©2005 Sociedade Brasileira de Química.en
dc.format.extent24-30-
dc.language.isoeng-
dc.sourceScopus-
dc.subjectHumic substances-
dc.subjectPoly(o-ethoxyaniline)-
dc.subjectSensors-
dc.subjecthumic acid-
dc.subjectpoly(4 ethoxyaniline)-
dc.subjectpolymer-
dc.subjectunclassified drug-
dc.subjectwater-
dc.subjectaqueous solution-
dc.subjectchemical structure-
dc.subjectconductance-
dc.subjectelectric activity-
dc.subjectfilm-
dc.subjectmolecular interaction-
dc.subjectmultivariate analysis-
dc.subjectpolymerization-
dc.subjectprincipal component analysis-
dc.subjectproton transport-
dc.subjectquality control-
dc.subjectRaman spectrometry-
dc.subjectsensor-
dc.subjectsoil-
dc.subjectstructure analysis-
dc.subjectultraviolet spectroscopy-
dc.titleStudies on the interaction between humic substances and conducting polymers for sensor applicationen
dc.typeoutro-
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationEmbrapa Instrumentacao Agropecuaria CNPDIA/Embrapa, CP 741, 13560-970 São Carlos - SP-
dc.description.affiliationCiê. e Engenharia de Materiais IQSC/IFSC/EESC Universidade de São Paulo, 13560-970 São Carlos - SP-
dc.description.affiliationDepto. de Fis., Quim. e Biol. FCT Universidade Estadual Paulista, 19060-900 Presidente Prudente - SP-
dc.description.affiliationUnespDepto. de Fis., Quim. e Biol. FCT Universidade Estadual Paulista, 19060-900 Presidente Prudente - SP-
dc.identifier.doi10.1590/S0103-50532005000100004-
dc.identifier.scieloS0103-50532005000100004-
dc.identifier.wosWOS:000227616100003-
dc.rights.accessRightsAcesso aberto-
dc.identifier.file2-s2.0-17444372410.pdf-
dc.relation.ispartofJournal of the Brazilian Chemical Society-
dc.identifier.scopus2-s2.0-17444372410-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

There are no files associated with this item.
 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.