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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Cerrados. |
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Data corrente: |
08/06/1997 |
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Data da última atualização: |
08/06/1997 |
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Autoria: |
DIAS, M. C.; GOMES, R. A. R. |
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Título: |
Debulhadeira manual de feijao caupi: alternativa para o pequeno produtor. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
Manaus: EMBRAPA-UEPAE de Manaus, 1986. |
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Páginas: |
28p |
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Série: |
(EMBRAPA-UEPAE de Manaus. Circular Tecnica, 14). |
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Idioma: |
Português |
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Palavras-Chave: |
Caupi; Pequeno agricultor; Processing. |
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Thesagro: |
Beneficiamento; Debulhadeira; Feijão de Corda; Maquina Agrícola; Pequeno Produtor; Semente; Vigna Unguiculata. |
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Thesaurus Nal: |
cowpeas; equipment; seeds; small farms. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00813nam a2200301 a 4500
001 1561137
005 1997-06-08
008 1986 bl uuuu u0uu1 u #d
100 1 $aDIAS, M. C.
245 $aDebulhadeira manual de feijao caupi$balternativa para o pequeno produtor.
260 $aManaus: EMBRAPA-UEPAE de Manaus$c1986
300 $a28p
490 $a(EMBRAPA-UEPAE de Manaus. Circular Tecnica, 14).
650 $acowpeas
650 $aequipment
650 $aseeds
650 $asmall farms
650 $aBeneficiamento
650 $aDebulhadeira
650 $aFeijão de Corda
650 $aMaquina Agrícola
650 $aPequeno Produtor
650 $aSemente
650 $aVigna Unguiculata
653 $aCaupi
653 $aPequeno agricultor
653 $aProcessing
700 1 $aGOMES, R. A. R.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
20/04/2023 |
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Data da última atualização: |
15/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
CATUNDA, L. G. S.; PRADO, T. M. do; OLIVEIRA, T. R. de; SANTOS, D. J. A. dos; GOMES, N. O.; CORREA, D. S.; FARIA, R. C.; MACHADO, S. A. S. |
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Afiliação: |
DANIEL SOUZA CORREA, CNPDIA. |
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Título: |
SARS-CoV-2 detection enabled by a portable and label-free photoelectrochemical genosensor using graphitic carbon nitride and gold nanoparticles. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Electrochimica Acta, v. 451, 142271, 2023. |
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Páginas: |
10 p. |
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ISSN: |
0013-4686 |
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DOI: |
https://doi.org/10.1016/j.electacta.2023.142271 |
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Idioma: |
Inglês |
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Conteúdo: |
Fast, sensitive, simple, and cheap sensors are highly desirable to be applied in the health system because they improve point-of-care diagnostics, which can reduce the number of cases of infection or even deaths. In this context, here we report the development of a label-free genosensor using a screen-printed electrode modified with 2D-carbonylated graphitic carbon nitride (c-g-C3N4), poly(diallyldimethylammonium) chloride (PDDA), and glutathione-protected gold nanoparticles (GSH-AuNPs) for photoelectrochemical (PEC) detection of SARS-CoV-2. We also made use of Arduino and 3D printing to miniaturize the sensor device. The electrode surface was characterized by AFM and SEM techniques, and the gold nanoparticles by UV?Vis spectrophotometry. For SARSCoV-2 detection, capture probe DNA was immobilized on the electrode surface. The hybridization of the final genosensor was tested with a synthetic single-strand DNA target and with natural saliva samples using the photoelectrochemistry method. The device presented a linear range from 1 to 10,000 fmol L− 1 and a limit of detection of 2.2 and 3.4 fmol L− 1 using cpDNA 1A and 3A respectively. The sensibility and accuracy found for the genosensor using cpDNA 1A using biological samples were 93.3 and 80% respectively, indicating the potential of the label-free and portable genosensor to detect SARS-CoV-2 RNA in saliva samples. |
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Palavras-Chave: |
Arduino; Saliva test; Saliva test Miniaturized platform; SARS-CoV-2 detection; SARS-CoV-2 detection Photoelectrochemical (PEC) sensor. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02388naa a2200301 a 4500
001 2153291
005 2024-01-15
008 2023 bl uuuu u00u1 u #d
022 $a0013-4686
024 7 $ahttps://doi.org/10.1016/j.electacta.2023.142271$2DOI
100 1 $aCATUNDA, L. G. S.
245 $aSARS-CoV-2 detection enabled by a portable and label-free photoelectrochemical genosensor using graphitic carbon nitride and gold nanoparticles.$h[electronic resource]
260 $c2023
300 $a10 p.
520 $aFast, sensitive, simple, and cheap sensors are highly desirable to be applied in the health system because they improve point-of-care diagnostics, which can reduce the number of cases of infection or even deaths. In this context, here we report the development of a label-free genosensor using a screen-printed electrode modified with 2D-carbonylated graphitic carbon nitride (c-g-C3N4), poly(diallyldimethylammonium) chloride (PDDA), and glutathione-protected gold nanoparticles (GSH-AuNPs) for photoelectrochemical (PEC) detection of SARS-CoV-2. We also made use of Arduino and 3D printing to miniaturize the sensor device. The electrode surface was characterized by AFM and SEM techniques, and the gold nanoparticles by UV?Vis spectrophotometry. For SARSCoV-2 detection, capture probe DNA was immobilized on the electrode surface. The hybridization of the final genosensor was tested with a synthetic single-strand DNA target and with natural saliva samples using the photoelectrochemistry method. The device presented a linear range from 1 to 10,000 fmol L− 1 and a limit of detection of 2.2 and 3.4 fmol L− 1 using cpDNA 1A and 3A respectively. The sensibility and accuracy found for the genosensor using cpDNA 1A using biological samples were 93.3 and 80% respectively, indicating the potential of the label-free and portable genosensor to detect SARS-CoV-2 RNA in saliva samples.
653 $aArduino
653 $aSaliva test
653 $aSaliva test Miniaturized platform
653 $aSARS-CoV-2 detection
653 $aSARS-CoV-2 detection Photoelectrochemical (PEC) sensor
700 1 $aPRADO, T. M. do
700 1 $aOLIVEIRA, T. R. de
700 1 $aSANTOS, D. J. A. dos
700 1 $aGOMES, N. O.
700 1 $aCORREA, D. S.
700 1 $aFARIA, R. C.
700 1 $aMACHADO, S. A. S.
773 $tElectrochimica Acta$gv. 451, 142271, 2023.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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