Buscar
Mostrando ítems 401-410 de 568
Síntese de 1,2,3-triazóis 1,4,5-trissubstituídos via catálise heterogênea empregando reações em micro-ondas e fluxo contínuo
(Universidade Federal de São Carlos, 2018-07-05)
Heterocyclic compounds containing the 1,2,3-triazole nucleus have received special attention in the field of synthetic chemistry have seen that have a wide field of application in biological and material areas. In this ...
Estudos da expressão e da função do gene sintase de quitina em Atta sexdens
(Universidade Federal de São Carlos, 2018-04-06)
In Brazil, leaf-cutting ants belonging to the genus Atta and Acromyrmex and are considered as pests in agricultural and forestry regions that can lead to great economic losses. The aim of this work was to identify the ...
Estudo dos alcaloides quinolônicos de Waltheria brachypetala Turcz: isolamento, determinação estrutural, biogênese, atividades fungitóxica e anticolinesterase
(Universidade Federal de São Carlos, 2012-06-26)
Waltheria brachypetala Turcz (Malvaceae) is an endemic medicinal plant from brazilian northeast. This plant is commonly used on folk medicine as antifungal, antiinflamatory and to treatment of bronchitis and central nervous ...
The implementation of NMR techniques for measuring interactions between small organic molecules/inhibitors and enzyme Acetylcholinesterase: a step towards Alzheimer´s control
(Universidade Federal de São Carlos, 2015-05-21)
The inhibition of the acetylcholinesterase (AChE) might be an excellent therapy in controlling Alzheimer’s disease as stated by the cholinergic hypothesis. In this context, the inhibitors of AChE, are of medical and ...
Diferenciação química de quatro espécies de Bauhinia (pata-de-vaca)
(Universidade Federal de São Carlos, 2018-06-15)
The search for new compounds from natural products with high biological activity is an arduous task that has improved due to the evolution of instrumental analytical techniques. In addition, the use of medicinal herbs for ...
Perfil químico e caracterização estrutural de metabólitos na polpa do açaí (Euterpe oleracea Mart.) por RMN
(Universidade Federal de São Carlos, 2018-07-06)
Acai is a widely consumed fruit in the North Region of Brazil and has gained consumers in other regions of the country and abroad. With the increasing acai pulp demand, quality control measures become necessary to improve ...
Desenvolvimento de imunoensaio eletroquímico para detecção de biomarcadores proteicos utilizando partículas magnéticas e arranjo de eletrodos descartáveis para o diagnóstico de câncer de próstata
(Universidade Federal de São Carlos, 2019-04-05)
This work describes the development of electrochemical immunoassays using electrode disposable devices made from low cost materials as an alternative for detection of the biomarkers p16, GSTP1, PSA and CYFRA-21-1 for ...
Avaliação de novas arquiteturas de carbono para o desenvolvimento de sensores eletroquímicos para a determinação de espécies de interesse em diferentes matrizes de amostras
(Universidade Federal de São Carlos, 2019-03-01)
In this doctorate work the efforts were expended in the electrochemical study and electroanalytical application of electrochemical sensors based on two carbonaceous structures: diamond-like carbon (DLC) and carbon black ...
Combinação de reações organocatalíticas e multicomponentes para a síntese de sistemas heterocíclicos e moleculas híbridas
(Universidade Federal de São Carlos, 2019-02-08)
Small enantiomerically pure or enriched organic molecules are key starting materials
in organic synthesis. Chiral building blocks are in high demand in the overall
synthesis of complex natural products and in the discovery ...
Nitrogen and Phosphorus Nanocomposite Fertilizers: Synthesis, Particle Size and Matrix Effects
(Universidade Federal de São Carlos, 2018-02-26)
With high agricultural productivity, is necessary a chemical fertilization of soil, and nitrogen and phosphorus are the macronutrients indispensable for plants. In this sense, the current demand for fertilizer requires ...