Search
Now showing items 831-840 of 1042
Multicomponent approach to silica-grafted peptide catalysts : A 3 D continuous-flow organocatalytic system with on-line monitoring of conversion and stereo-selectivity
(Universidade Federal de São Carlos, 2014-11-28)
The derivatization of organocatalysts with functional appendages suitable to anchor onto solid supports is usually achieved by stepwise syntheses. As an alternative to such a strategy, this work describes a one-pot approach ...
Determinação de arsênio total e inorgânico em sucos de frutas e arroz por ICP-MS
(Universidade Federal de São Carlos, 2016-07-07)
Analytical procedures using inductively coupled plasma mass spectrometry (ICP-MS) for the determination of total As in rice samples and fruit juices and inorganic As in rice samples were developed. A microwave-assisted ...
Estudo do perfil químico de Cyperus rotundus e avaliação do seu potencial de absorção de metais
(Universidade Federal de São Carlos, 2016-07-27)
The following work describes the comparative study of the variation between chemical profiles of plants of the Cyperus rotundus species – where one was collected at Vale S.A.’s dumping ground in Canaã dos Carajás city, ...
Compostos carbonílicos heterobimetálicos de Ru(II)/Fe(II) : propriedades citotóxicas e estudo da interação com BSA e DNA
(Universidade Federal de São Carlos, 2016-03-30)
Ruthenium and iron-based drugs are an option for the development of improved chemotherapeutic agents for cancer treatment with lower toxicity. Thereby, this work present the in vitro cytotoxic activity and in vitro interaction ...
Metodologias de síntese e modificações estruturais em meso-Tetraarilporfirinas
(Universidade Federal de São Carlos, 2016-03-21)
In this thesis we describe studies towards the synthesis of porphyrins aiming the optimization of literature protocols leading to more environmental friendly approaches. Also, structural modifications and photophysical
...
Efeito da inserção de nanopartículas sintéticas preparadas por rota coloidal em matriz acrílica comercial de uso odontológico
(Universidade Federal de São Carlos, 2016-03-11)
Acrylic resins are very used in dentistry to dental restorations and manufacture of
prostheses. New compositions of acrylic resin have been developed through the
incorporation of silver nanoparticles due to the antimicrobial ...
Diferentes estratégias espectroanalíticas para a determinação de metais em cosméticos
(Universidade Federal de São Carlos, 2015-10-22)
In this work, it was developed a procedure for the
determination of metals in cosmetics, employing the techniques ICP OES, GF AAS,
LIBS and LA-ICP OES; in addition, it was explored the potential of chemometric
tools. ...
Recuperação de reservatórios eutrofizados por atividades antrópicas : estudos em microcosmos
(Universidade Federal de São Carlos, 2016-05-25)
The economic development of a country depends on good quality of water
available, so the conservation and restoration of water bodies are strategic
conditions for this to happen. However, water resources have become ...
Abordagens sintéticas para a funcionalização de novas porfirinas
(Universidade Federal de São Carlos, 2016-09-30)
Herein, we optimized some conditions in the synthesis of a β-octasubstitued porphyrin with electron withdrawing groups (1). This system was used to study the bromination of the meso position aiming at subsequent ...
Determinação de metais por técnicas espectroanalíticas em amostras de carne e sangue de bovinos submetidos à dieta com adição de erva-mate (Ilex paraguariensis, St. Hilaire)
(Universidade Federal de São Carlos, 2016-05-23)
Given the importance of quality in the bovine meat and its relationship with the diet submitted to animals, this master dissertation has the proposition to evaluate the Ca, Cu, Fe, K, Mg, and Zn concentrations changes in ...