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Mostrando ítems 851-860 de 1059
A aprendizagem de catálise enzimática por meio de casos: proposta para o ensino de química
(Universidade Federal de São Carlos, 2018-11-09)
The fundamental aim of provoking innovative forms of knowledge construction in Chemistry during basic education requires the instrumentalization of strategies that can show re-significances of pedagogical practices and ...
Complexos fosfínicos de rutênio contendo o ligante 2,2’-dipiridilamina: síntese, caracterização e avaliação de suas atividades citotóxicas e de interação com DNA
(Universidade Federal de São Carlos, 2016-02-29)
This work aims the synthesis, characterization and evaluation of the biological activities of a series of mixed ligand ruthenium (II) phosphine complexes the containing 2,2’-dipyridylamine ligand. Furthermore, the studies ...
Synthesis of N-heterocycles and building blocks using multicomponent, photochemical and electrochemical approaches
(Universidade Federal de São Carlos, 2020-02-17)
Multicomponent reactions and protocols mediated by light and electrochemistry are powerful tools for modern organic synthesis. Moreover, they obey several principles of green chemistry such as atom economy, catalysis, waste ...
Estudo de complexos metálicos de RuII, NiII, PdII e PtII com ligantes aciltioureias: atividade citotóxica e interação com biomoléculas
(Universidade Federal de São Carlos, 2019-12-20)
In this work, two series of phosphine complexes containing acylthiourea ligands were synthesized, characterizatied and evaluatied of the cytotoxic activities. The first series of compounds was composed of complexes with ...
Avaliação das condições operacionais de espectrômetro de emissão óptica com plasma acoplado indutivamente com configuração axial
(Universidade Federal de São Carlos, 2007-02-23)
The goal of this thesis was the critical
evaluation of the analytical capability of an inductively coupled plasma spectrometer
(ICP OES) with axially viewed configuration. The general view that axially systems are mainly ...
Estudo de inibidores naturais e sintéticos de cisteíno proteases
(Universidade Federal de São Carlos, 2018-11-30)
This work describes in its first part the chemical study of the fungus Fusarium proliferatum looking for inhibitors of cysteine proteases, with two distinct approaches: i) The search for papain inhibitors, to understand ...
Análise dos méis de abelhas do gênero Melipona (abelhas sem ferrão) através de LC-SPE/NMR, LC-BPSU/NMR e RMN aliada à quimiometria.
(Universidade Federal de São Carlos, 2015-05-07)
In Brazil, there are approximately 200 species of stingless bees, especially in the Amazon region. The Melipona seminigra and the M. interrupta are species that stand out in Central Amazon, since they are abundant and have ...
Complexos metálicos luminescentes com ácidos fenólicos coordenados: alvos seletivos a mitocôndrias e mapeamento da atividade antioxidante in vitro e in vivo por técnicas fluorescentes
(Universidade Federal de São Carlos, 2017-11-16)
In this work, the syntheses and characterizations of the complexes are presented, cis-[Mg(phen)(iso)(H2O)3](CH3COO) and [Mg(RPA)(iso)(H2O)(OH)], where phn =phenanthroline, iso= isovanillic , and N-(9-(2-(((4-((1,10-phen ...
Isolamento e caracterização de enzimas ligninolíticas expressas pelos fungos Chaetomium cupreum URM 5066 e Mucor racemosus CBMAI 847
(Universidade Federal de São Carlos, 2018-05-25)
The degradation of lignin, which together with cellulose and hemicellulose constitutes the cell wall of plants, is generally hampered by its complex structure, its high molecular weight and its insolubility. However, fungi ...
Synthesis and biotransformation of diarylpentadienones
(Universidade Federal de São Carlos, 2019-12-20)
SYNTHESIS AND BIOTRANSFORMATION OF DIARYLPENTADIENONES. Naturally-occuring compounds containing bis-aryl moiety are important components of fine chemicals required by pharmaceutical, agrochemical and flavor industries. ...