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Now showing items 851-860 of 1042
Síntese e caracterização de espinélios de lítio e manganês obtidos via rota hidrotermal assistida por microondas
(Universidade Federal de São Carlos, 2014-11-28)
Lithium and manganese oxide in spinel phase (LiMn2O4) was obtained by microwave-assisted hydrothermal route starting from completely soluble reagents. For this, a mixture of potassium permanganate and lithium hydroxide ...
Especiação de arsênio em água e tecido de peixe empregando extração em fase sólida (SPE) e espectrometria de emissão óptica com plasma acoplado indutivamente (ICP OES)
(Universidade Federal de São Carlos, 2023-02-28)
The adverse effects caused by potentially toxic elements on the environment and human health vary according to the elements’ species, which differ in terms of toxicity. Arsenic (As) exposure is a global public health ...
Ocorrência e distribuição de contaminantes emergentes na bacia hidrográfica do Rio Jundiaí - São Paulo
(Universidade Federal de São Carlos, 2015-01-29)
Three different classes of emerging contaminants were analyzed in surface water samples, suspended particulate matter (SPM) and sediments from the Jundiaí River Basin - SP. The hormones 17-β-estradiol and 17-α- ...
Avaliação e correção de interferências na determinação de As e Se por técnicas com plasma acoplado indutivamente
(Universidade Federal de São Carlos, 2012-02-28)
The aim of the thesis was to evaluate different strategies for correcting spectral and non-spectral interferences on As and Se determination by inductively coupled plasma optical emission spectrometry (ICP OES) and mass ...
Nanopartículas de Pt-TiO2 com propriedades catalíticas e fotocatalíticas
(Universidade Federal de São Carlos, 2013-04-23)
In the first part of this work, a binary system composed of TiO2 and Pt particles was used as photocatalyst for degradation of methyl orange under different lighting conditions: simulated sunlight and ultraviolet. In these ...
Síntese e avaliação da atividade biológica de neolignanas e análogos
(Universidade Federal de São Carlos, 2012-04-17)
Substituted benzofurans and neolignans have considerable pharmacological potential. In this work, we report some synthetic methods for the construction of these rings, as well as their derivatives. Through the oxidative ...
Novos complexos de Ru(II) e Mg(II) com flavonóides : atividade tóxica, sítios ativos e mecanismos de ação
(Universidade Federal de São Carlos, 2012-11-09)
The use of pesticides in agriculture, in order to enhance and ensure food production for a growing population has led to many concerns about risks to human health and the environment. Therefore, search for new strategies ...
Materiais híbridos obtidos pela adsorção de nanopartículas metálicas sobre fungos micelares pelo efeito biotemplate
(Universidade Federal de São Carlos, 2014-02-18)
The use of bio-design concepts is a promising strategy for obtaining materials with properties of great scientific and technological interest. There are numerous examples of materials obtained by employing concepts of ...
Desenvolvimento de um magneto-imunoensaio microfluídico com detecção eletroquímica para diagnóstico de hanseníase
(Universidade Federal de São Carlos, 2023-03-23)
Leprosy is an infectious disease caused by the bacteria Mycobacterium leprae and its diagnosis is mostly performed by clinical examination. Thus, in this work, two magnetoimmunoassays were developed for the serological ...
Polipropileno modificado com semicondutores a base de prata: compósitos com alta potencialidade contra SARS-CoV-2 e outros patógenos
(Universidade Federal de São Carlos, 2023-03-30)
The worldwide outbreak of the coronavirus (COVID-19) pandemic and other
emerging infections is difficult and sometimes impossible to treat, making them
one of the major public health issues of recent times. It is ...