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Now showing items 11-20 of 52
Estudo teórico e experimental da interação de elétrons com moléculas de interesse astroquímico
(Universidade Federal de São Carlos, 2021-09-08)
We performed a theoretical and experimental investigation on electron (e⁻) scattering by molecules of astrochemical interest. Theoretically, we obtained elastic differential (DCSs), integral (ICSs) and momentum-transfer ...
Espalhamento elástico de elétrons e ionização dissociativa da molécula de trimetil fosfato
(Universidade Federal de São Carlos, 2021-09-28)
The trimethyl phosphate molecule is an important prototype for studying electron interactions with molecules of biological significance containing the phosphate group. These studies contribute to the understanding of energy ...
Synthesis, characterization and cytotoxicity of Pd(II) complexes for the inhibition of cathepsin B
(Universidade Federal de São Carlos, 2021-12-13)
Cancer is one of the most dreaded diseases of the 20th century, and its prevalence and incidence are increasing in the 21st century. The situation is so serious that one in four people can develop cancer in their lifetime. ...
Modificação de matrizes em análise espectroscópica por Raman e infravermelho médio
(Universidade Federal de São Carlos, 2021-12-16)
The spectroscopy methods of analysis, as Mid Infrared (MIR) and Raman spectroscopy, are based on the interaction of light and matter. These techniques present advantages, such as, non-destructive analysis, low cost and ...
Investigação do efeito alelopático dos extratos da aroeira-preta Myracrodruon urundeuva Freire Allemão no desenvolvimento das sementes das braquiárias Urochloa decumbens Stapf e Urochloa brizantha (Hochst. ex A. Rich) Stapf
(Universidade Federal de São Carlos, 2021-12-20)
Brachiaria grasses have great importance in the livestock sector, however, these grasses are considered weeds that affect negatively the productivity of many crops. Field observations indicate that Myracrodruon urundeuva ...
Propriedades citotóxicas de complexos de Cu(I)-Trifenilfosfina com ligantes aciltioureias ou naftoquinonas
(Universidade Federal de São Carlos, 2021-07-26)
In this work, the synthesis, characterization, and evaluation of the cytotoxic activity of sixteen Cu(I)/Triphenylphosphine complexes containing the acylthiourea or naphthoquinones ligands are presented. The complexes were ...
Calibração multivias em Laser-Induced Breakdown Spectroscopy (LIBS) para determinação de Ca, K e Mg em amostras de suplemento mineral para humanos
(Universidade Federal de São Carlos, 2021-03-25)
This work intends to present a new approach for modeling LIBS data resolved in time using multiway algorithms, aiming to achieve the advantage of second order. The algorithms evaluated in this study were: Multivariate Curve ...
Estudo de distintos processos oxidativos avançados eletroquímicos (e-POA) e teste de um reator solar em escala semi-piloto
(Universidade Federal de São Carlos, 2021-02-12)
In this work, two different advanced oxidation processes (AOP) were investigated: i) electrochemical processes (electro FeredFenton and photoelectro Fered-Fenton with BDD and DSA® electrodes under UVA/UVC irradiation (9 ...
Catálise por complexos metálicos: I – Complexos de Ni(II), Cu(II) e Pd(II) com bases de Schiff na oxidação de catecóis; II – Complexos de Ru(II) com ligantes tipo-pinça na desidrogenação de álcoois
(Universidade Federal de São Carlos, 2021-06-11)
Green Chemistry is an indispensable scientific tool for sustainable development, catalysis is one of its twelve principles through which energy waste and hazardous chemicals production can be minimized. In this sense, ...
Determinação de impurezas inorgânicas em medicamentos: avaliação de preparo de amostra e medidas espectroanalíticas
(Universidade Federal de São Carlos, 2021-06-16)
Green sample preparation procedures were developed in this dissertation for determination of elemental impurities in drugs and dietary supplements by argon-based plasma spectroanalytical methods according to Chapters 232, ...