Molecular Absorption Spectrum
Mostrando 1-12 de 88 artigos, teses e dissertações.
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1. SOCIOLOGIA SAGRADA
Benzbromarone (BZB) is a drug that has diuretic activity and is used in the gout treatment. Its therapeutic efficiency is decreased by its low water solubility (11.8 mg L-1) and highly hydrophobic aspect (logP 2.7), which are responsible for affecting its intestinal absorption and bioavailability. BZB inclusion complex (IC) aims at increasing the drug solubi
Sociol. Antropol.. Publicado em: 2020-08
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2. Preparation and Characterization of the β-Cyclodextrin Inclusion Complex with Benzbromarone
Benzbromarone (BZB) is a drug that has diuretic activity and is used in the gout treatment. Its therapeutic efficiency is decreased by its low water solubility (11.8 mg L-1) and highly hydrophobic aspect (logP 2.7), which are responsible for affecting its intestinal absorption and bioavailability. BZB inclusion complex (IC) aims at increasing the drug solubi
J. Braz. Chem. Soc.. Publicado em: 2020-08
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3. Nanostructured polymeric system based of cashew gum for oral admnistration of insulin
ABSTRACT The subcutaneous administration of insulin has been the treatment of millions of diabetics in the world. However, for such via insulin is invasive and not mimics the physiological action causing side effects. The oral route would be the most physiological and comfortable option, but the oral bioavailability of insulin is low by proteolytic activity
Matéria (Rio J.). Publicado em: 16/09/2019
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4. Poly(3-octylthiophene)/stearic Acid Langmuir and Langmuir-Blodgett films: Preparation and characterization
A study is reported on Langmuir and Langmuir-Blodgett (LB) films obtained by adding different percentages of stearic acid (SA) to poly(3-octylhiophene) (P3OT). Surface pressure - mean molecular area (π - A) isotherms, ultraviolet-visible (UV-Vis) absorption spectrum, atomic force microscope (AFM) and dc electrical measurements have been used for characteriz
Mat. Res.. Publicado em: 2014-12
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5. Degradação fotoeletroquímica do herbicida bentazona sobre eletrodos de carbono modificados por TiO2
This work involved the study of degradation of the herbicide bentazone in aqueous solution by different routes, in order to search a method that generates safe products to the environment. It was tested electrochemical polarization methods involving positive and negative potential, irradiation with UV light and deposition of TiO2 on the electrode surface, se
Química Nova. Publicado em: 2012
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6. Efeito de solvente no espectro de absorção da 5-fluorouracil. Análise de diferentes procedimentos teóricos / Solvent Effect on the 5-fluorouracil absorption spectrum, Analysis od different theoretical procedures
A molécula 5-fluorouracil (5FU) é muito utilizada em tratamentos de câncer. Seu espectro de absorção é caracterizado por duas bandas de diferentes intensidades, as transições n-p* e p-p*, e seu estudo em diferentes solventes é de considerável importância para compreender a fotofísica do estado excitado. Este é o primeiro passo essencial para obt
Publicado em: 2011
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7. Flow analysis-hydride generation-gas phase derivative molecular absorption spectrophotometric determination of antimony in antileishmanial drugs
In the present work, the development of a method based on the coupling of flow analysis (FA), hydride generation (HG), and derivative molecular absorption spectrophotometry (D-EAM) in gas phase (GP), is described in order to determine total antimony in antileishmanial products. Second derivative order (D²224nm) of the absorption spectrum (190 - 300 nm) is u
Química Nova. Publicado em: 2009
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8. Theoretical studies of structural and electronic properties of emodin molecule in solution / Estudos teóricos de propriedades estruturais e eletrônicas da molécula emodina em solução
Estudamos as propriedades estruturais e eletrônicas da molécula emodina (EM), em diferentes condições, do ponto de vista experimental e teórico. Numa primeira parte, realizamos medidas do espectro eletrônico de absorção da EM, em meio solvente (água, clorofórmio e metanol). Nessa parte, obtivemos que o solvente provoca pouco efeito nos deslocamento
Publicado em: 2009
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9. Caracterização parcial das reações de fotooxidação e eletrooxidação do dipiridamol e das subunidades de hemoglobina extracelular / Partial caracterization of dipydidamole fotooxidation and eletrooxidation reactions and partial caracterization of extracellular hemoglobin subunits
Dipyridamole (DIP), 2,6-bis(dietanolamina)-4,8-dipiperidinapirimida-[5,4-d] pirimidina) is known for its vasodilating and antiplatelet aggregation activity, exhibiting also a potent antioxidant effect, strongly inhibiting lipid peroxidation. In the present work, the quenching of singlet molecular oxygen, O2(1Δg), by dipyridamole, RA47 and RA25 was anal
Publicado em: 2008
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10. Estudo e aplicações do fenômeno de absorção de dois fótons em moléculas azo-aromáticas / Studies and applications of two-photon absorption in azo-aromatic molecules
Here we investigated fundamental and applied aspects of the two-photon absorption process in azoaromatic compounds. Azoaromatic molecules have been studied in the last few years due to their applications in optical storage devices, light modulators and surface relief gratings, processes related to the photo-isomerization mechanism. The main focus of the resu
Publicado em: 2007
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11. Estudo termoanalítico e de compatibilidade fármaco-excipiente de rifampicina e alguns medicamentos utilizados na terapêutica da tuberculose / Thermoanalytical study and drug-excipient compatibility of rifampicin and some medicines utilized in tuberculosis terapeutics
This work was aimed at implementing the thermal analysis and other physico-chemical and analytical techniques in the development and quality control of drugs and medicines for the treatment of tuberculosis, especially rifampicin. The differential scanning calorimetry (DSC), thermogravimetry/derivative thermogravimetry(TG/DTG), elemental analysis, X-ray diffr
Publicado em: 2007
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12. Simulação de espectros de absorção para determinação de temperaturas em chamas / Simulation of absorption spectra for determination of temperature in flames
Um dos métodos não intrusivos para medição de temperatura de chamas e concentração de espécies que tem sido utilizado com sucesso em trabalhos de literatura é a espectroscopia de absorção a laser de diodo. Para cálculo da temperatura, basicamente são comparados espectros de absorção de moléculas presentes na chama (a grande maioria utilizando
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/10/2006