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Filmes nanoestruturados para a detecção de glicose e sacarose em bebidas comerciais
(Universidade Estadual Paulista (Unesp), 2010-07-16)
Neste trabalho, investigou-se a fabricação e caracterização de filmes ultrafinos de poli(alilamina hidroclorada) PAH com as enzimas glicose oxidase (GOx) e invertase (INV) no desenvolvimento de biossensores amperométricos ...
BIOSENSORS' PREPARATION TO BE USED FOR ENTRAPMENT METHOD WITH COPOLYMERS POLYANILINE DERIVATIVES
(SOC CHILENA QUIMICA, 2010)
The entrapment method was used to prepare electrochemical biosensors. Using controlled potential method, copolymers were synthesized between aniline y sulfonated-anilines in aqueous media at pH 4.9 on Platinum disc. The ...
Glassy carbon electrodes modified with multiwall carbon nanotubes dispersed in polylysine
(Wiley VCH Verlag, 2008-08)
We report the analytical performance of glassy carbon electrodes (GCE) modified with a dispersion of multi-wall carbon nanotubes (MWCNT) in polylysine (Plys) (GCE/MWCNT-Plys). The resulting electrodes show an excellent ...
Enzymes in the hypopharyngeal gland extracts from workers of Scaptotrigona postica (Hymenoptera, Apinae, Meliponini) related to food storing in the colony
(2002-01-01)
This study reports on research of enzymes produced by the hypopharyngeal glands, which are related to food storing in the colony, from gland extracts from nurse and forager workers of S. postica. Only the presence of the ...
Enzymes in the hypopharyngeal gland extracts from workers of Scaptotrigona postica (Hymenoptera, Apinae, Meliponini) related to food storing in the colony
(2002-01-01)
This study reports on research of enzymes produced by the hypopharyngeal glands, which are related to food storing in the colony, from gland extracts from nurse and forager workers of S. postica. Only the presence of the ...
Amperometric response of hydrogen peroxide at carbon nanotubes paste electrodes modified with an electrogenerated poly(Fe(III)-5-amino-phenantroline): Analytical applications for glucose biosensing
(Wiley VCH Verlag, 2010-01-23)
This work reports the catalytic activity of a polymer electrogenerated from Fe(III)-5-amino-1,10-phenantroline solution at a carbon nanotubes paste electrode (CNTPE) towards the oxidation and mainly the reduction of hydrogen ...
Imobilização enzimática e eletrodos modificados para determinação amperométrica em fluxo de glicose, ácido ascórbico e ácido úrico
(Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em QuímicaUFJF, 2019)
An electroactive versatile matrix for the construction of sensors
(Wiley VCH Verlag, 2011-01)
The strong interaction between a positively charged electroactive polyelectrolyte (polyallylamine derivatized with an osmium complex) with an anionic surfactant (sodium dodecyl sulfate) produces a composite material soluble ...
Surfactant presence in a multilayer polyelectrolyte-enzyme system improves its catalytic response
(Elsevier Science Inc, 2009-05)
Self-assembling of poly(allylamine) containing an osmium polypyridil complex (PAOs) alternatively with sodium dodecyl sulfate (SDS) and glucose oxidase (GOx) generates a ternary multilayer system, (PAOs/SDS/PAOs/GOx)n. The ...