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http://acervodigital.unesp.br/handle/11449/68087
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DC Field | Value | Language |
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dc.contributor.author | Venancio, Everaldo C. | - |
dc.contributor.author | Consolin Filho, Nelson | - |
dc.contributor.author | Constantino, Carlos J. L. | - |
dc.contributor.author | Martin-Neto, Ladislau | - |
dc.contributor.author | Mattoso, Luiz H. C. | - |
dc.date.accessioned | 2014-05-27T11:21:15Z | - |
dc.date.accessioned | 2016-10-25T18:20:22Z | - |
dc.date.available | 2014-05-27T11:21:15Z | - |
dc.date.available | 2016-10-25T18:20:22Z | - |
dc.date.issued | 2005-01-01 | - |
dc.identifier | http://dx.doi.org/10.1590/S0103-50532005000100004 | - |
dc.identifier.citation | Journal of the Brazilian Chemical Society, v. 16, n. 1, p. 24-30, 2005. | - |
dc.identifier.issn | 0103-5053 | - |
dc.identifier.uri | http://hdl.handle.net/11449/68087 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/68087 | - |
dc.description.abstract | The 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.extent | 24-30 | - |
dc.language.iso | eng | - |
dc.source | Scopus | - |
dc.subject | Humic substances | - |
dc.subject | Poly(o-ethoxyaniline) | - |
dc.subject | Sensors | - |
dc.subject | humic acid | - |
dc.subject | poly(4 ethoxyaniline) | - |
dc.subject | polymer | - |
dc.subject | unclassified drug | - |
dc.subject | water | - |
dc.subject | aqueous solution | - |
dc.subject | chemical structure | - |
dc.subject | conductance | - |
dc.subject | electric activity | - |
dc.subject | film | - |
dc.subject | molecular interaction | - |
dc.subject | multivariate analysis | - |
dc.subject | polymerization | - |
dc.subject | principal component analysis | - |
dc.subject | proton transport | - |
dc.subject | quality control | - |
dc.subject | Raman spectrometry | - |
dc.subject | sensor | - |
dc.subject | soil | - |
dc.subject | structure analysis | - |
dc.subject | ultraviolet spectroscopy | - |
dc.title | Studies on the interaction between humic substances and conducting polymers for sensor application | en |
dc.type | outro | - |
dc.contributor.institution | Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) | - |
dc.contributor.institution | Universidade de São Paulo (USP) | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.description.affiliation | Embrapa Instrumentacao Agropecuaria CNPDIA/Embrapa, CP 741, 13560-970 São Carlos - SP | - |
dc.description.affiliation | Ciê. e Engenharia de Materiais IQSC/IFSC/EESC Universidade de São Paulo, 13560-970 São Carlos - SP | - |
dc.description.affiliation | Depto. de Fis., Quim. e Biol. FCT Universidade Estadual Paulista, 19060-900 Presidente Prudente - SP | - |
dc.description.affiliationUnesp | Depto. de Fis., Quim. e Biol. FCT Universidade Estadual Paulista, 19060-900 Presidente Prudente - SP | - |
dc.identifier.doi | 10.1590/S0103-50532005000100004 | - |
dc.identifier.scielo | S0103-50532005000100004 | - |
dc.identifier.wos | WOS:000227616100003 | - |
dc.rights.accessRights | Acesso aberto | - |
dc.identifier.file | 2-s2.0-17444372410.pdf | - |
dc.relation.ispartof | Journal of the Brazilian Chemical Society | - |
dc.identifier.scopus | 2-s2.0-17444372410 | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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