Buscar
Mostrando ítems 51-60 de 197
Desenvolvimento de detectores eletroquímicos baseados em eletrodos modificados com materiais nanoestruturados para determinação de antioxidantes em bioquerosene de aviação utilizando cromatografia líquida de alta eficiência
(Universidade Estadual Paulista (Unesp), 2019-10-17)
A globalização e o aumento da população mundial refletem diretamente na demanda energética, principalmente por combustíveis de origem fóssil, que causam diversos problemas de cunho econômico e ambiental. O setor de transporte ...
Electrocatalysis of NADH on 3,5-Dinitrobenzoic Acid Encapsulated on Multiwalled Carbon Nanotube-Modified Electrode
(Springer, 2016)
We report that glassy carbon electrode (GCE) modified with multiwalled carbon nanotubes (MWCNTs) can encapsulate or entrap 3,5-dinitrobenzoic acid (35DNB) generating a 35DNB-MWCNTGC electrode. After electrochemical reduction ...
Non-covalent functionalization of multi-wall carbon nanotubes with polyarginine: Characterization and analytical applications for uric acid quantification
(Wiley VCH Verlag, 2018-07)
We report for the first time the non-covalent functionalization of multiwall carbon nanotubes (MWCNTs) with polyarginine (Polyarg), the modification of glassy carbon electrodes (GCE) with the resulting Polyarg-MWCNTs ...
Novas arquiteturas para sensores modificados com materiais nanoestruturados de carbono
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Química - PPGQCâmpus São Carlos, 2016-02-19)
In this work are reported the development of new architectures for sensors using carbon nanomaterials. Firstly, the investigation of the nanomaterials reduced graphene oxide (RGO) and carbon black (CB) in
chitosan film ...
Influence of electrostatic interactions induced via a nanocomposite film onto a glassy carbon electrode used for highly selective and sensitive ascorbic acid detection
(Electrochemical Society, 2019-05)
A study of the electroanalytical detection of ascorbic acid (AH2) using a glassy carbon electrode (GCE) modified with nanocomposite films constructed with multiwall carbon nanotubes (MWCNT) or functionalized with carboxylic ...
Multiwalled carbon nanotubes modified electrodes with encapsulated 1,4-dihydro-pyridine-4-nitrobenzene substituted compounds
(Sociedad Chilena de Quimica, 2014)
© 2014, Sociedad Chilena de Quimica. All rights reserved. We report a voltammetric study of several nitroaromatic compounds such as the drugs: Nifedipine, Nitrendipine, Furnidipine and Nisoldipine in multiwalled carbon ...
Desenvolvimento de eletrodos de carbono vítreo modificados com nanotubos de carbono funcionalizados imobilizados em filmes de hidrocloreto de poli(alilamina) para determinação de fármacos
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Química - PPGQ, 2011-02-18)
Research involving carbon nanotubes (CNT) have a great attraction since its synthesis to the technology application. As part of the work was studied the formation and the stability of a functionalized Multiwall Carbon ...
Desenvolvimento de biossensores à base de filmes poliméricos, nanotubos de carbono e nanopartículas de ouro
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Química - PPGQ, 2013-06-07)
In this work was described the development of new architectures for biosensors, using nanomaterials. The enzyme of interest was immobilized on glassy carbon electrode modified with multi-walled carbon nanotubes chemically ...
Highly selective determination of dopamine in the presence of ascorbic acid and serotonin at glassy carbon electrodes modified with carbon nanotubes dispersed in polyethylenimine
(American Scientific Publishers, 2008-11)
We report the highly selective and sensitive voltammetric dopamine quantification in the presence of ascorbic acid and serotonin by using glassy carbon electrodes modified with a dispersion of multiwall carbon nanotubes ...