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Now showing items 811-820 of 1064
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 ...
Estudo teórico computacional dos sistemas micelares de alquilbenzenos em diiodometano
(Universidade Federal de São Carlos, 2014-02-28)
The surfactant-like behavior of the alkylbenzenes in diiodomethane is experimentally verified, being observed, in addition to the characteristic effects on the surface tension, evidences of clusters formation. The main ...
Uso de imagens digitais e ferramentas quimiométricas para identificação e determinação de Cr (VI) em solos contaminados
(Universidade Federal de São Carlos, 2012-03-23)
The determination of toxic metals in soils is an important factor to access their quality or identify possible contamination. The element Cr has double feature: Cr (III) is essential for human beings and Cr (VI) is toxic. ...
Ensino de química para pessoas com deficiência visual: um estudo por meio da revisão sistemática
(Universidade Federal de São Carlos, 2017-01-27)
Education in Sciences is strongly influenced by the public policies and legislation in course. Among the challenges that the profession demands, is the paradigm of inclusive education, which is even greater when teaching ...
Nanoemulsões de óleos essenciais: mecanismos de estabilidade e interação com pectina em bionanocompósitos para aplicação em embalagens ativas
(Universidade Federal de São Carlos, 2019-03-22)
Microbial growth is among the challenges impairing food preservation and shelf-life. Essential oils (EO) featuring antimicrobial and antioxidant activities denote an alternative for lessening the contents of synthetic ...
Complexos de cobre (II) de bases de Schiff prolínicas aplicados como inibidores e miméticos funcionais da enzima Urease e à formação de 1,2,3-triazóis 1,4-dissubstituídos
(Universidade Federal de São Carlos, 2019-03-18)
In this work five Schiff base-type ligands derived from a series of reaction steps were
synthesized starting from the amino acid L-proline, in which four of them are novel
and were completely characterized by 1H, 13C, ...
Desenvolvimento de sensores eletroquímicos à base de compósitos para a determinação simultânea de fármacos
(Universidade Federal de São Carlos, 2019-08-30)
In this doctoral thesis different carbon materials were explored for the development of novel electrochemical sensor platforms. Thus, a glassy carbon electrode modified with a functionalized graphene film, chitosan and ...
Desenvolvimento de dispositivos descartáveis e de baixo custo para a detecção de biomarcadores relacionados ao câncer de colo uterino e endometrial
(Universidade Federal de São Carlos, 2019-05-31)
Cervical cancer (CC) and endometrial cancer (EC) are malignant neoplasms that affect women worldwide and the early diagnosis of these cancers is still limited. The incidence of these malignancies has been increasing year ...
Ferramentas experimentais e teóricas aplicadas em elucidação de reações orgânicas
(Universidade Federal de São Carlos, 2019-09-05)
EXPERIMENTAL AND THEORETICAL TOOLS APPLIED FOR ORGANIC REACTIONS ELUCIDATION. The present thesis explore different problems involving organic reactions using the association between experimental methodologies and theoretical ...
Microestruturas de zeína produzidas pela técnica de fiação por sopro em solução visando à incorporação e liberação lenta de vitamina C
(Universidade Federal de São Carlos, 2019-05-31)
The development of functional micro/nanostructures for use in the agricultural area is relevant and has the potential to reduce the consumption of inputs with improved efficiency of the final product. In this context, the ...