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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
25/04/2003 |
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Data da última atualização: |
25/04/2003 |
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Autoria: |
FERREIRA, M.; RIUL JR. A.; WOHNRATH, K.; FONSECA, F. J.; OLIVEIRA JR. O. N.; MATTOSO, L. H. C. |
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Afiliação: |
Instituto de Física de São Carlos, São Carlos, SP.; Embrapa Instrumentação Agropecuária, São Carlos, SP; USP-Escola Politécnica da Universidade de São Paulo, São Paulo, SP. |
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Título: |
High-performance taste sensor made from Langmuir-Blodgett films of conducting polymers and a ruthernium complex. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Analytical Chemistry, Washington, v. 75, p. 953-955, 2003. |
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Idioma: |
Inglês |
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Conteúdo: |
A sensor arrary made up of nanostructured Langmuir-Blodgett *LB) films is used as an electronic tongue capable of identifying sucrose, quinine, NaC1, and HC1 at the parts-per-billion (ppb) level, being in some cases 3 orders of magnitude below the human thresshold. The sensing units comprise LB films from conducting polymers and a ruthenium complex transferred onto gold Interdigitated electrodes. Impedance spectroscopy is used as the principle of detection, and the importance of using nanostructured films is confirmed by comparing results from LB films with those obtained from cast films. |
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Palavras-Chave: |
Artificial taste sensors; Conducting polymers; Films; Langmuir-Blodgett; Ruthenium complex. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01312naa a2200241 a 4500
001 1024684
005 2003-04-25
008 2003 bl --- 0-- u #d
100 1 $aFERREIRA, M.
245 $aHigh-performance taste sensor made from Langmuir-Blodgett films of conducting polymers and a ruthernium complex.
260 $c2003
520 $aA sensor arrary made up of nanostructured Langmuir-Blodgett *LB) films is used as an electronic tongue capable of identifying sucrose, quinine, NaC1, and HC1 at the parts-per-billion (ppb) level, being in some cases 3 orders of magnitude below the human thresshold. The sensing units comprise LB films from conducting polymers and a ruthenium complex transferred onto gold Interdigitated electrodes. Impedance spectroscopy is used as the principle of detection, and the importance of using nanostructured films is confirmed by comparing results from LB films with those obtained from cast films.
653 $aArtificial taste sensors
653 $aConducting polymers
653 $aFilms
653 $aLangmuir-Blodgett
653 $aRuthenium complex
700 1 $aRIUL JR. A.
700 1 $aWOHNRATH, K.
700 1 $aFONSECA, F. J.
700 1 $aOLIVEIRA JR. O. N.
700 1 $aMATTOSO, L. H. C.
773 $tAnalytical Chemistry, Washington$gv. 75, p. 953-955, 2003.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
21/02/2019 |
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Data da última atualização: |
07/03/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SCAPIN-BUFFARA, C. R.; ANGELOTTI, F.; DUFAULT, N. S.; PEREIRA, C. B.; TESSMANN, D. J. |
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Afiliação: |
CLAUDIA R. SCAPIN-BUFFARA; FRANCISLENE ANGELOTTI, CPATSA; NICHOLAS S. DUFAULT; CAROLINA B. PEREIRA; DAURI J. TESSMANN. |
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Título: |
Seasonal progression of leaf rust in Niagara Rosada grapevine in a biannual crop system in Brazil. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
European Journal of Plant Pathology, v. 152, n. 3, p. 589-597, 2018. |
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DOI: |
10.1007/s10658-018-1501-0 |
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Idioma: |
Inglês |
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Conteúdo: |
Grapevine leaf rust, which is caused by the fungus Phakopsora euvitis, is an important late-season disease of ?Niagara Rosada? (Vitis labrusca) grapevine in Brazil. The early defoliation of plants caused by the disease impairs fruit ripening and reduces marketable yield. In a study carried out in northern Paraná State, the temporal progression of grapevine leaf rust was quantified in a production system of ?Niagara Rosada? grapevine with two growing seasons per year: mid-summerautumn and late winter-spring. The influence of weather-related variables on rust progression was examined through correlation analyses. It was observed that the rust was more severe in summer-autumn than in winter-spring. Significant positive linear correlations (P ≤ 0.05) were found between rust severity and rainfall (r ≥ 0.90) and average daily hours of leaf wetness (r ≥ 0.82). In addition, negative correlation was found between rust severity and temperature (r≥ −0.84) in the mid-summer/autumn season. Mild temperatures in autumn were considered decisive for rust progression. In Brazilian tropical viticulture, management strategies for grapevine leaf rust must consider the risk of rust damage in autumn caused by temperature. |
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Palavras-Chave: |
Ferrugem da folha; Niagara Rosada; Phakopsora euvitis. |
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Thesagro: |
Doença; Doença Fúngica; Uva; Viticultura. |
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Thesaurus NAL: |
Fungal diseases of plants; Vitis. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/193683/1/Fran-2018.pdf
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Marc: |
LEADER 02110naa a2200289 a 4500
001 2106322
005 2019-03-07
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1007/s10658-018-1501-0$2DOI
100 1 $aSCAPIN-BUFFARA, C. R.
245 $aSeasonal progression of leaf rust in Niagara Rosada grapevine in a biannual crop system in Brazil.$h[electronic resource]
260 $c2018
520 $aGrapevine leaf rust, which is caused by the fungus Phakopsora euvitis, is an important late-season disease of ?Niagara Rosada? (Vitis labrusca) grapevine in Brazil. The early defoliation of plants caused by the disease impairs fruit ripening and reduces marketable yield. In a study carried out in northern Paraná State, the temporal progression of grapevine leaf rust was quantified in a production system of ?Niagara Rosada? grapevine with two growing seasons per year: mid-summerautumn and late winter-spring. The influence of weather-related variables on rust progression was examined through correlation analyses. It was observed that the rust was more severe in summer-autumn than in winter-spring. Significant positive linear correlations (P ≤ 0.05) were found between rust severity and rainfall (r ≥ 0.90) and average daily hours of leaf wetness (r ≥ 0.82). In addition, negative correlation was found between rust severity and temperature (r≥ −0.84) in the mid-summer/autumn season. Mild temperatures in autumn were considered decisive for rust progression. In Brazilian tropical viticulture, management strategies for grapevine leaf rust must consider the risk of rust damage in autumn caused by temperature.
650 $aFungal diseases of plants
650 $aVitis
650 $aDoença
650 $aDoença Fúngica
650 $aUva
650 $aViticultura
653 $aFerrugem da folha
653 $aNiagara Rosada
653 $aPhakopsora euvitis
700 1 $aANGELOTTI, F.
700 1 $aDUFAULT, N. S.
700 1 $aPEREIRA, C. B.
700 1 $aTESSMANN, D. J.
773 $tEuropean Journal of Plant Pathology$gv. 152, n. 3, p. 589-597, 2018.
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Embrapa Semiárido (CPATSA) |
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