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Now showing items 1011-1020 of 1042
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 ...
Cinética de liberação de clorexidina em nanocompósito de magnetita e quitosana
(Universidade Federal de São Carlos, 2019-04-03)
Nanocomposites are used in several fields of knowledge, including nanomedicine. They are used as drug carriers because of their biocompatibility and biological activity, with possible antimicrobial activity. This study ...
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 ...
Organocatálise assimétrica e sistemas vinílogos: adição de 1,3-oxazolina-2-tionas a aldeídos a,b-insaturados
(Universidade Federal de São Carlos, 2017-03-16)
The use of organic molecules in stereoselective transformations has emerged as a powerful tool for the efficient construction of chiral skeletons and complementing existing methods. Currently, a great variety of reactions ...
Metabolic discrimination of citrus species resistant and susceptible to black spot disease using multi-platform-based metabolomic approach
(Universidade Federal de São Carlos, 2020-08-31)
Citrus black spot (CBS) caused by the fungus Phyllosticta citricarpa. CBS causes several economic damages to commercial citrus orchards, such as fruit blemishes and premature fruit drop, leading to yield loss. There are ...
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 ...
Investigação da eletrodeposição de ligas de Zn-Fe-Mo e caracterização química, estrutural e morfológica dos filmes
(Universidade Federal de São Carlos, 2021-08-19)
In this work, an alkaline bath for electrodeposition of Zn-Fe-Mo alloy containing glycerol was developed. Potentiometric titration of the Fe3+/glycerol bath showed that soluble Fe(III)-glycerol complex was formed at pH > ...