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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
25/01/2005 |
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Data da última atualização: |
26/08/2013 |
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Autoria: |
HERMANN, P. S. P.; VENANCIO, E. C.; MACDIARMID, A. G.; MATTOSO, L. H. C. |
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Título: |
Polyaniline-based sensor obtained by using line patterning technique on plastic. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS, 16. Porto Alegre, 2004. Anais...Porto Alegre, 2004. |
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Idioma: |
Inglês |
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Conteúdo: |
Line patterning technique with metal was used to produce interdigitated electrodes of gold on plastic, which were the base to develop the sensors for volatile organic compounds (VOCs) and water vapor. The sensors were obtained by covering the interdigitated electrodes with a thin film of emeraldine salt by using two methods, by dipping into a solution of Emeraldine-HCSA in hexafluoro-2-propanol and by in situ deposition of polyaniline (Emeraldine-HCI). From the in situ deposited emeraldine-HCI two others sensors were obtained by anion replacement, the Emeraldine-HCSA and Emeraldine-HDBSA. For polyaniline emeraldine salt, the sensors have presented changes in its conductivity when it was removed from stream of dry nitrogen gas and put in the presence of water vapor from the static laboratory air showing a good sensitivity. The changes in the electrical resistance of the sensors were recorded and the sensitivity and reversibility were evaluated. In this process, the anion plays an important role, and Emeraldine-'HCI has shown the highest sensitivity to the humidity present in the laboratory air. The Emeraldine-HCSA sensors have shown good sensitivity when in the presence of polar volatile organic vapors such as chloroform, tetrahydrofuran (THF) and acetone. Therefore, the fine patterning of gold can be used to develop a simple, inexpensive sensor device to portable electronic system. |
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Palavras-Chave: |
Polianilina; Sensores. |
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Thesagro: |
Plástico. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02007naa a2200193 a 4500
001 1028774
005 2013-08-26
008 2004 bl --- 0-- u #d
100 1 $aHERMANN, P. S. P.
245 $aPolyaniline-based sensor obtained by using line patterning technique on plastic.
260 $c2004
520 $aLine patterning technique with metal was used to produce interdigitated electrodes of gold on plastic, which were the base to develop the sensors for volatile organic compounds (VOCs) and water vapor. The sensors were obtained by covering the interdigitated electrodes with a thin film of emeraldine salt by using two methods, by dipping into a solution of Emeraldine-HCSA in hexafluoro-2-propanol and by in situ deposition of polyaniline (Emeraldine-HCI). From the in situ deposited emeraldine-HCI two others sensors were obtained by anion replacement, the Emeraldine-HCSA and Emeraldine-HDBSA. For polyaniline emeraldine salt, the sensors have presented changes in its conductivity when it was removed from stream of dry nitrogen gas and put in the presence of water vapor from the static laboratory air showing a good sensitivity. The changes in the electrical resistance of the sensors were recorded and the sensitivity and reversibility were evaluated. In this process, the anion plays an important role, and Emeraldine-'HCI has shown the highest sensitivity to the humidity present in the laboratory air. The Emeraldine-HCSA sensors have shown good sensitivity when in the presence of polar volatile organic vapors such as chloroform, tetrahydrofuran (THF) and acetone. Therefore, the fine patterning of gold can be used to develop a simple, inexpensive sensor device to portable electronic system.
650 $aPlástico
653 $aPolianilina
653 $aSensores
700 1 $aVENANCIO, E. C.
700 1 $aMACDIARMID, A. G.
700 1 $aMATTOSO, L. H. C.
773 $tIn: CONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS, 16. Porto Alegre, 2004. Anais...Porto Alegre, 2004.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| 5. |  | SILVA, W. T. L. da; MARTIN-NETO, L.; MAGNONI-JUNIOR, L.; VENANCIO, E. C. Biogás como energia renovável e eficiente. In: SIMPÓSIO SOBRE INOVAÇÃO E CRIATIVIDADE CIENTÍFICA NA EMBRAPA, I., 2008, Brasília, DF. Resumos... Brasília, DF: Embrapa, 2008. Disponível em: . Acesso em: 09 fev. 2009.| Tipo: Resumo em Anais de Congresso |
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| 7. | | RIUL, JR. A.; VENANCIO, E. C.; HERRMANN, P. S. P.; MATTOSO, L. H. C. Effect of analytes in altering the morphology of langmuir-blodgett films of conducting polymers. Acta Microscopica, Maracaibo, v. 10, p. 162-166, 2001. Supplement 1. Proceedings of the First Latin American Symposium on Scanning Microscopy, São Pedro, apr. 2001.| Biblioteca(s): Embrapa Instrumentação. |
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| 17. | | FULCHINI, C. C.; OLIVEIRA, R. K.; SILVA, L. M. G.; MARCONCINI, J. M.; VENANCIO, E. C. Produção e caracterização de nanocompósitos de poli (álcool venílico) contendo polianilina e nanoestruturas de celulose In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 9., 2017, São Carlos. Anais ... São Carlos: Embrapa Instrumentação, 2017. p. 106-109. Editores: Caue Ribeiro de Oliveira, Elaine Cristina Paris, Luiz Henrique Capparelli Mattoso, Marcelo Porto Bemquerer, Maria Alice Martins, Odílio Benedito Garrido de Assis.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 42 | |
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