Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Valberes B. Nascimento"'
Autor:
MarÃÂlia O. F. Goulart, Carlos E. Salas, Marcelo M. Santoro, Alexandre M. C. Santos, Julio C. D. Lopes, Valberes B. Nascimento, Danielle C. M. Ferreira, Francine S. de Paula, Fabiane C. de Abreu
Publikováno v:
Sensors, Vol 8, Iss 3, Pp 1519-1538 (2008)
The in situ DNA-damaging capacity of berenil (1) has been investigated usingan electrochemical approach employing double stranded (ds) DNA-modified glassy carbonelectrode biosensors. Electrochemical voltammetric sensing of damage caused by 1 todsDNA
Externí odkaz:
https://doaj.org/article/8a3908446396441eb2f9abd249cc9815
Autor:
Valberes B. Nascimento, Lúcio Angnes
Publikováno v:
Química Nova, Vol 21, Iss 5, Pp 614-629 (1998)
A review dealing with the use of screen-printing technology to manufacture disposable electrodes is presented, covering in details virtually all the publications in the area up to early 1997 and including 206 references. The elements and different st
Externí odkaz:
https://doaj.org/article/198b1e677aff42eab7e034016a75cda4
Autor:
Carlos H. S. Mendes, Thayane C. S. Moreira, Severino Carlos B. Oliveira, João Gabriel Soares Montenegro, Valberes B. Nascimento, Nathalia L. Queiroz
Publikováno v:
Electroanalysis. 32:19-28
Autor:
Anabel S. Lourenço, Williame F. Ribeiro, Raphael Fonseca do Nascimento, Severino Carlos B. Oliveira, Amanda C. Silva, Mário César Ugulino de Araújo, Valberes B. Nascimento
Publikováno v:
Analytica Chimica Acta. 1008:29-37
The electrocatalytic oxidation of tartaric acid on a carbon paste electrode modified with cobalt (II)-phthalocyanine was demonstrated and applied to the development of a highly sensitive, simple, fast and inexpensive voltammetric sensor to determine
Autor:
Maysa L. Nascimento, José A. M. Nascimento, Nathalia L. Queiroz, Severino Carlos B. Oliveira, Valberes B. Nascimento
Publikováno v:
Electroanalysis. 30:1184-1191
Raltitrexede (RTX) is a folate analogue that belongs to the antimetabolites family and has antineoplastic activity correlated to inhibition of the thymidylate synthase (TS) enzyme. This study addresses the electrochemical characterization of RTX at a
Autor:
Severino Carlos B. Oliveira, José A. M. Nascimento, Raphael Fonseca do Nascimento, Valberes B. Nascimento, João Gabriel Soares Montenegro
Publikováno v:
Analytical Methods. 10:4525-4534
DNA damage has been associated with cancer. Alkylating agents interact with DNA to yield a variety of products, such as 7-methylguanosine (7-mGuo), a predominant adduct, 5-methylcytosine, 3-methyladenosine and o-6-methylguanosine. This work revealed,
Autor:
Ingrid A. F. S. Lima, Severino Carlos B. Oliveira, Valberes B. Nascimento, Christopher M.A. Brett, Pedro L. Almeida Júnior, Mônica F. Belian, Carlos H. S. Mendes
Publikováno v:
Analytical Letters. 51:496-511
An amine-functionalized porous sol–gel silica film was shown to be an effective platform to immobilize small anionic redox mediators of high solubility on solid electrodes by electrostatic interact...
Autor:
Mário César Ugulino de Araújo, Williame F. Ribeiro, Giancarlo R. Salazar-Banda, Everaldo Paulo de Medeiros, Valberes B. Nascimento, Daniel Jackson Estevam da Costa, Anabel S. Lourenço
Publikováno v:
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice)
Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
Ricin, (Ricinus communis agglutinin, RCA) is one of the most poisonous of naturally occurring substances and has great potential for bioterrorism because no antidote exists. Fast detection at low concentrations is a challenge, and vital to the develo
Autor:
José A. M. Nascimento, Severino Carlos B. Oliveira, Maysa L. Nascimento, Valberes B. Nascimento, Nathalia L. Queiroz
Publikováno v:
Electroanalysis. 29:489-496
This study investigates redox properties of fluorescein (FLSC), a fluorescent tracer with many applications in several areas, markedly in biochemical research and health care diagnosis, on glassy carbon electrode (GCE) at a wide interval of pH by usi
Publikováno v:
Electrochimica Acta. 178:134-143
Two thiophene derivatives named 4”-nitrobenzoyl (thiophene-3′-yl)-1-ethylate ( NTh ) and 3”,5”-dinitrobenzoyl (thiophene-3′-yl)-1-ethylate ( DNTh ) were synthesized and characterized. Both monomers were electrochemically polymerized onto pl