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Mostrando ítems 621-630 de 635
Reaproveitamento de resíduos agroindustriais de frutas obtidos por meio de manejo convencional e orgânico: estudo de métodos para a extração verde e sustentável de compostos bioativos
(Universidade Federal de São Carlos, 2022-03-31)
The magnitude of the Brazilian agricultural and agro industrial market impresses by its greatness, but it is also the cause of serious concerns regarding the amount of waste generated and how to handle such residues. This ...
Desenvolvimento de um novo protocolo sequencial três etapas para a síntese de 1,2,3-triazóis 1,4-dissubstituídos assistida por irradiação de micro-ondas
(Universidade Federal de São Carlos, 2019-12-11)
Heterocyclic compounds has received a great attention in the branch of synthetic chemistry due to their wide field of applications, and among these, 1,2,3-triazoles are highlighted. In this work, a new three-step sequential ...
Preparação de um novo catalisador de cobre trocado em zeólita magneticamente recuperável para síntese de 1,2,3-triazóis 1,4-dissubstituídos
(Universidade Federal de São Carlos, 2018-07-06)
The search for more sustainable methodologies has led in recent years to a significant increase in the development of more efficient heterogeneous catalysts, easily recoverable and with high stability over several reaction ...
Remoção de contaminantes emergentes via sistema eletroquímico fotoassistido
(Universidade Federal de São Carlos, 2020-12-16)
The present work presents the characterization and application studies of semiconductor materials used in the degradation of naproxen in environmental pathways. It is recognized that semiconductor materials present as ...
Estudo da produção de nanofibras de carbono por fiação por sopro em solução a partir de poliacrilonitrila e lignina
(Universidade Federal de São Carlos, 2019-10-24)
Carbon nanofibers (NFC) are highly resistant materials and are widely used in the aerospace and battery industry. Methods such as eletrospinning and solution blow spinning (SBS) are used for the production of carbon ...
Evaluation of the composition of electronic waste hard disk using spectroanalytical techniques: proposition of fast and simple methods
(Universidade Federal de São Carlos, 2020-12-17)
The electronic waste is a worldwide problem of great magnitude with 53.6 Mt of waste generated in 2019. Unfortunately, the recycling rate is still very low. It is estimated that only 2% of the electronic waste is recycled ...
Estudo metabolômico dos constituintes voláteis de algodoeiro submetido à interações bióticas e abióticas e mecanismos de indução de resistência
(Universidade Federal de São Carlos, 2020-02-17)
Plants have developed several defense strategies against herbivory, one of which is the response of induced defenses that represents the biosynthesis of phytotoxic molecules through attack. Plant resistance mechanisms can ...
Diferenciação abiótica do metabolismo secundário em Aspergillus aculeatus e Penicillium brasilianum utilizando sais inorgânicos
(Universidade Federal de São Carlos, 2020-03-31)
The biosynthetic potential of microorganisms for the production of secondary metabolites is limited by the routes encoded in their genome. However, although this potential is enormous, few of them are expressed under ...
Structural, morphological and optical properties of Ca10V6O25
(Universidade Federal de São Carlos, 2020-05-05)
Modeling the structure and morphology of crystals is of great interest in the field of science and industry, as these factors are strongly linked in determining the properties of materials. That said, Ca10V6O25 compounds ...
Sustainable synthesis of ciclopentene derivatives through multicomponent reactions in continuous flow regime
(Universidade Federal de São Carlos, 2020-03-25)
Sustainable chemistry has gained relevance in recent years, not only in the fine chemical industry, but also in organic synthesis. This new conception of chemistry allows the development of environmentally friendly processes, ...