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Mostrando ítems 271-280 de 321
Avaliação de técnicas com plasma acoplado indutivamente para a determinação de constituintes inorgânicos no ciclo produtivo do frango de corte e iodo em sal de cozinha
(Universidade Federal de São Carlos, 2013-04-26)
The aim of this thesis was the development of procedures for the determination of total arsenic, selenium and chromium in chicken production-related samples and iodine in table salt using inductively coupled plasma methods. ...
Estudo do crescimento e automontagem de nanocristais coloidais
(Universidade Federal de São Carlos, 2012-12-07)
In the last two decades a remarkable progress in nanomaterials knowledge has been done, mainly in the chemical synthesis of inorganic nanocrystals via colloidal processes. Several of these advances addressed the growth ...
A regioquímica das reações de Diels-Alder de N-tosil para-benzoquinona iminas
(Universidade Federal de São Carlos, 2012-02-29)
In this work it was done a comparative study on the reactivity of a variety of dienophiles including para-benzoquinones, their mono-oximes, their N-tosyl mono-oximes and their N-tosylimines on the Diels-Alder reactions ...
Synthesis of g-C3N4/Nb2O5 heterostructures: study of photocatalytic properties
(Universidade Federal de São Carlos, 2019-04-22)
Semiconductors are promising catalysts for artificial photosynthesis, but to date, there is no consensus on the ideal photocatalyst for CO2 reduction. Among semiconductors used for CO2 reduction, Nb2O5 is a promising ...
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 ...
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 ...
Modificação das propriedades estruturais, morfológicas e ópticas do Ag3PO4 e Ag2-2xZnxWO4(0≤ x ≤ 0.25)
(Universidade Federal de São Carlos, 2019-11-06)
Phosphates and tungstates are important compounds and known mainly for their photocatalytic and photoluminescent properties. The present work proposes a study of the structural, morphological and photoluminescent properties ...
Impressão 3D de compósitos de fosfatos de cálcio com poli (ácido lático) para aplicações biomédicas
(Universidade Federal de São Carlos, 2017-03-10)
The present work was carried out to analyze the viability of the 3D printing technique for the production of ceramic/polymer composites with bioabsorbable characteristics and both physical-chemical and mechanical properties ...