Výsledky vyhledávání - "Luís Marcos Cerdeira Ferreira"

Dissertation/ Thesis

Caracterização e aplicação analítica de eletrodos modificados com sistemas porfirínicos supramoleculares

Publikováno v: Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.

Estudos com eletrodos modificados foram conduzidos utilizando dois sistemas porfirínicos supramoleculares diferentes. O primeiro foi baseado na modificação de eletrodo de carbono vítreo com uma porfirina de níquel tetrarrutenada, [NiIITPyP{RuII(

Externí odkaz: http://www.teses.usp.br/teses/disponiveis/46/46136/tde-06042016-113117/

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Dissertation/ Thesis

Sistemas microfluídicos amperométricos utilizando enzimas imobilizadas

Autor: Luís Marcos Cerdeira Ferreira

Publikováno v: Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.

Este trabalho descreve o desenvolvimento de um sistema microfluídico, contendo, como componente principal, um reator enzimático constituído de um microcanal fabricado em substrato de poli(metacrilato de metila) e um sistema amperométrico como det

Externí odkaz: http://www.teses.usp.br/teses/disponiveis/46/46136/tde-18082011-100149/

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Tuning Selectivity and Sensitivity of Mixed‐polymeric Tetraruthenated Metalloporphyrins Modified Electrodes as Voltammetric Sensors of Chloramphenicol

Autor: Koiti Araki, Paulo Roberto Martins, Luís Marcos Cerdeira Ferreira, Lúcio Angnes

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4327a641acfd0696ccb88fcfc57dbd12
https://doi.org/10.1002/elan.201800729

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Amperometric determination of promethazine in tablets using an electrochemically reduced graphene oxide modified electrode

Autor: Luís Marcos Cerdeira Ferreira, Viviane S. S. A. Ferreira, Fernanda Vieira, Geraldo Magela Da Trindade, Lúcio Angnes, Fabiana S. Felix

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Graphene films were prepared on a glassy carbon electrode for amperometric determination of promethazine hydrochloride in pharmaceutical products. This modified sensor was prepared by chemical oxidation of graphite powder followed by product exfoliat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f35ce490887d7332b3ce8eba76c7844
https://doi.org/10.1039/c4nj00887a

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Influence of cobalt content on nanostructured alpha-phase-nickel hydroxide modified electrodes for electrocatalytic oxidation of isoniazid

Autor: Luís Marcos Cerdeira Ferreira, Lúcio Angnes, Koiti Araki, Paulo Roberto Martins

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Fluorine doped tin oxide electrodes modified with nanostructured alpha nickel hydroxide, cobalt oxi-hydroxide and mixed alpha nickel/cobalt hydroxide electrodes were evaluated for determining isoniazid concentration by cyclic voltammetry (CV) and bat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8b560c8b0b43abc49a874ac5bb8ffc8
https://doi.org/10.1016/j.snb.2013.11.029

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Characterization and analytical application of electrodes modified with supramolecular pophyrin sytems

Autor: Luís Marcos Cerdeira Ferreira

Publikováno v: Biblioteca Digital de Teses e Dissertações da USP
Universidade de São Paulo (USP)
instacron:USP

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39e00e41271bd1451f856048e2b640bc

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Unveiling the structure of polytetraruthenated nickel porphyrin by Raman spectroelectrochemistry

Autor: Lúcio Angnes, Ana Maria da Costa Ferreira, Ivano Gebhardt Rolf Gutz, Luís Marcos Cerdeira Ferreira, Daniel Grasseschi, Mauro Sergio Ferreira Santos, Paulo Roberto Martins, Koiti Araki, Henrique E. Toma

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The structure of polytetraruthenated nickel porphyrin was unveiled for the first time by electrochemistry, Raman spectroelectrochemistry, and a hydroxyl radical trapping assay. The electrocatalytic active material, precipitated on the electrode surfa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e22726219c156a36f4bd16bd57a7833
https://pubmed.ncbi.nlm.nih.gov/25812035

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Amperometric folic acid quantification using a supramolecular tetraruthenated nickel porphyrin μ-peroxo-bridged matrix modified electrode associated to batch injection analysis

Autor: Henrique E. Toma, Paulo Roberto Martins, Lúcio Angnes, Koiti Araki, Luís Marcos Cerdeira Ferreira

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

A supramolecular Nickel (II) porphyrin complex containing four pyridyl-bis(2,2′-bipyridyl)chloro ruthenium meso substituents was submitted to successive voltammetric cycles in high alkaline media to produce a supramolecular matrix with Nickel cente

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29c94f59e483acbdd4ae2fb52b6dc2c8

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Miniaturized flow system based on enzyme modified PMMA microreactor for amperometric determination of glucose

Autor: Eric Tavares da Costa, Lúcio Angnes, Claudimir Lucio do Lago, Luís Marcos Cerdeira Ferreira

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

This paper describes the development of a microfluidic system having as main component an enzymatic reactor constituted by a microchannel assembled in poly(methyl methacrylate) (PMMA) substrate connected to an amperometric detector. A CO2 laser engra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c97b2b2c9ee549b3d27a53cbd8fd27c5
https://pubmed.ncbi.nlm.nih.gov/23644059

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Quantification of terbinafine in pharmaceutical tablets using capillary electrophoresis with contactless conductivity detection and batch injection analysis with amperometric detection

Autor: Claudimir Lucio do Lago, Lúcio Angnes, Luís Marcos Cerdeira Ferreira, Pamela O. Rossini, Fabiana S. Felix

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Terbinafine hydrochloride (TerbHCl) is an allylamine derivative with fungicidal action, especially against dermatophytes. Different analytical methods have been reported for quantifying TerbHCl in different samples. These procedures require time-cons

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86aca0da780193f35badb68cbf726611
https://pubmed.ncbi.nlm.nih.gov/23158315

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