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Now showing items 471-480 of 481
Obtenção e caracterização eletroquímica do compósito polipirrol
(Universidade Federal de São Carlos, 2002-04-15)
This study was carried out to investigate the electrochemical
preparation of a composite polypyrrole / cobalt, as well as your characterization
physical-chemistry. The composite was electropolymerized on a platinum
substrate ...
Desenvolvimento de uma metodologia para determinação de Cu, Cr e As utilizando microeletrodos
(Universidade Federal de São Carlos, 2005-07-27)
Using carbon fiber microelectrode modified with a film of Hg. The employed techniques were differential pulse voltammetry coupled to the adsorptive cathodic stripping for the As and Cr and the differential pulse voltammetry ...
Compreendendo o papel da melamina (C3H6N6) no caminho de degradação de compósitos fertilizantes contendo ureia
(Universidade Federal de São Carlos, 2021-11-23)
This work proposed a study of new fertilizer composites that have melamine in their composition, a molecule of high nitrogen content (66% total mass) but recalcitrant, observing factors that may influence the effective ...
Desenvolvimento de banhos para eletrodeposição da liga de Ni-Mo na presença do complexo bórico-sorbitol.
(Universidade Federal de São Carlos, 2024-04-26)
The Ni-Mo alloy is used in the industrial environment as it is characterized as a promising ecological substitute for hard chrome coating due to its excellent properties, such as high thermal stability, resistance to ...
Isolamento e identificação de compostos ativos de Vismia guianensis com potencial inseticida contra formigas cortadeiras
(Universidade Federal de São Carlos, 2024-03-28)
Vismia guianensis, also known as "pau
lacre," is chemically notable for the presence of a variety of secondary compounds
in its organs, including roots, bark, and leaves. These compounds have garnered
interest due ...
Fotodegradação de contaminantes emergentes por catalisadores à base de PHI (Poli Heptazina Imida)
(Universidade Federal de São Carlos, 2023-07-17)
The remediation of pollutants promoted by systems that are cheap and viable remains an important challenge in the field of catalysis. Carbon nitrides applied in photocatalytic systems are a promising class of materials for ...
Nanocarreadores biopoliméricos de isoflavonas de soja e óleos essenciais: potencial dermocosmético, fotoprotetivo e antimicrobiano
(Universidade Federal de São Carlos, 2023-12-08)
With the emergence of healthier and more conscious lifestyles, the cosmetics market has undergone a significant shift in chemical reformulation and technological planning. Plant extracts and essential oils stand out, as ...
Biotransformação de flavonoides em lagartas do gênero Spodoptera
(Universidade Federal de São Carlos, 2024-04-17)
Caterpillars of the genus Spodoptera are polyphagous herbivorous insects, meaning they feed on a wide variety of crops, which are of great economic interest in Brazil, including corn, cotton, sorghum, and soybeans. Although ...
Obtenção de uma quitinase mutante recombinante e avaliação da sua interferência no crescimento do fungo R. stolonifer
(Universidade Federal de São Carlos, 2024-02-22)
Chitin is the second most abundant biopolymer in nature and
its structure is formed by N-acetyl-β-D-glucosamine units linked through β-1,4-
glycosidic bonds. Different organisms have chitin such as crustaceans, insects ...
Desenvolvimento de dispositivo eletroquímico e sua aplicação na detecção de anticorpos voltados para o diagnóstico de hanseníase
(Universidade Federal de São Carlos, 2024-05-29)
Leprosy is a neglected tropical disease, caused by the bacteria Mycobacterim leprae that mainly affects the peripheral nerves, and its diagnosis is mostly carried out through clinical examination. In this work, a ...