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Preparação, caracterização e aplicação de eletrodos de nanotubos de carbono na determinação de Cr(III), Cr(VI) e flavonoides
(Universidade Federal de São Carlos, 2013-01-30)
The objective of this work is the development of a carbon nanotubes past electrode (CNTs) as electrochemical sensors in the analysis of flavonoids, (+) catechin and rutin, and Cr (III) and Cr (VI) ions, by differential ...
Determinação in situ de analitos de interesse alimentício empregando tratamento de imagens digitais de spot tests
(Universidade Federal de São Carlos, 2013-07-12)
In this work a simple, fast and inexpensive analytical method was developed to carry out in situ determinations of ethanol and sulfite ions in food samples. The method was based on digital images captured by cameras and / ...
Síntese e caracterização de complexos de platina (II) com ligandos fosfínicos e cloroquina : estudo de suas interações com o ADN e avaliação de suas atividades citotóxicas
(Universidade Federal de São Carlos, 2013-03-28)
In this work were synthesized and
characterized complexes of general formule [Pt(P)2Cl2] and [Pt(P)2(CQ)Cl]PF6
(where (P)2= triphenylphosphine (PPh3), 1,3-bis (diphenylphosphino ) propane
(dppp), 1,4-bis (diphenylphosphino) ...
Síntese de complexos semi-sanduíche n6-p-cimeno- Ru(II) contendo ligantes binitrogenados, interação com o DNA e potenciais atividades farmacológicas / Legna Andreina Colina Vegas
(Universidade Federal de São Carlos, 2013-03-26)
The synthesis, spectroscopic characterization, crystal structures and electrochemistry of π-arene piano-stool ruthenium (II) complexes with pyridine or derivatives as nitrogen donor ligands are described. A series of ...
Zirconato de cálcio: um estudo para aplicação como sensor de umidade relativa
(Universidade Federal de São Carlos, 2013-04-19)
In this work, it was used the Polymeric Precursors method (PPM). It started from a previous solution of metal cations in different concentrations, using citric acid as chelating agent and ethylene glycol as esterifying and ...
Estudo fitoquímico de Conchocarpus marginatus (Rutaceae), e avaliação do potencial biológico dos compostos isolados
(Universidade Federal de São Carlos, 2013-03-27)
The specie Conchocarpus marginatus is native from Espírito Santo. This plant, that was recently reclassified by PIRANI e KALLUNKI, does not show chemical or biological data in literature yet. In this way, the phytochemical ...
Proposta curricular do estado de Minas Gerais: uma análise pela ótica de professores e alunos do ensino médio
(Universidade Federal de São Carlos, 2013-02-28)
When starting the study of Chemistry Basics, we use the knowledge and knowledge that students already have and they often do not relate to chemistry, and promote thus a connection between scientific knowledge and the ...
Cerâmicas de PZT modificadas com terras raras sintetizadas usando o método dos complexos oxidantes de peróxido (OPM) e sinterizadas por micro-ondas
(Universidade Federal de São Carlos, 2013-07-23)
The Pb(Zr0,52Ti0,48)O3 solid solution in morphotropic phase and its modified (RExPb1-x)(Zr0,52Ti0,48O3) with RE = La, Pr or Nd and x = 0.05, 0.10, 0.15, 0.20, 0.30, 0.38 and 0.45 were satisfctorily prepared by oxidant ...
Estudos sobre a síntese de ftalocianinas anfifílicas com baixa agregação em solução
(Universidade Federal de São Carlos, 2013-01-16)
The present dissertation describe the studies conducted on the synthesis and photophysical properties of phthalocyanine dyes. The main propose of this work was to produce amphiphilic structures with low aggregation in ...
Estudos sobre síntese de novos fotossensibilizadores a partir de produtos naturais porfirinóides
(Universidade Federal de São Carlos, 2013-03-25)
In this work, we studied the structural transformation of methylpheophorbide a (2), a derivative of chlorophyll a (1) that was extracted from seaweed Spirulina maxima. The main propose of the study was to obtain compounds ...