1. Nanoporous materials: pillared clays and regular silicas as an example of synthesis and their porosity characterization by X-ray diffraction

Because of their practical applications, porous materials attract the attention of undergraduate students in a way that can be used to teach techniques and concepts in various chemistry disciplines. Porous materials are studied in various chemistry disciplines, including inorganic, organic, and physical chemistry. In this work, the syntheses of a microporous

Quím. Nova. Publicado em: 2014

2. Desenvolvimento e caracterização físico-química de nanopartículas lipídicas sólidas para encapsulação de proteínas / Development and physical chemistry characterization of solid lipid nanoparticles for encapsulating proteins

Nanopartículas Lipídicas Sólidas (NLS) vêm sendo investigadas desde o início dos anos 90. As dispersões de NLS apresentam como característica principal a interação com moléculas dos fármacos ou proteínas resultando em uma liberação sustentada e o transporte do princípio ativo até o alvo terapêutico, aumentando assim a sua eficácia de ação

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/08/2012

3. Efeitos dos parâmetros da extração e avaliação da qualidade física e química dos óleos de baru e amendoim / Effects of parameter extraction and quality assessment ofphysics and chemistry of baru and peanut oil

This work aimed to optimize the extraction of baru oil (Dipteryx alata Vog.) by continuous mechanical pressing and assess its quality compared to peanut oil extracted under the same conditions, since both have similar characteristics. The characterization of fruit and baru almonds from southern state of Goiás was carried out, determining their chemical comp

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2012

4. Furfural - da biomassa ao laboratório de química orgânica

The goal of this manuscript is provide to students of Chemistry and related areas an alternative experiment in which they can obtain a compound and learn to observe and interpret properties and predict organic structure by obtaining furfural from biomass. Furfural is an organic compound, obtained through acid hydrolysis of pentosans, commonly used in the che

Química Nova. Publicado em: 2012

5. Characterization of produced water in the oil industry for disposal and optimization of oil water separation. / Caracterização de água produzida na indústria de petróleo para fins de descarte e otimização do processo de separação óleo/água

The oil industry has several segments that can impact the environment. Among these, produced water which has been highlight in the environmental problem because of the great volume generated and its toxic composition. Those waters are the major source of waste in the oil industry. The composition of the produced water is strongly dependent on the production

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/03/2011

6. Tratamento de água para consumo humano de reservatório eutrofizado através de pré e interoxidação, adsorção em carvão ativado e dupla filtração / Drinking water treatment of eutrophic reservoir by pre and interoxidation, activated carbon adsorption and double filtration

Disordered basins occupation provoked acceleration of eutrophication, which besides purely aesthetic and landscaping problems, results in occurrence of high phytoplankton densities with potentially toxic cyanobacteria dominance. Alongside physical aging and consequent deterioration of installations, usual treatment technologies do not provide adequate condit

Publicado em: 2011

7. Caracterização Física, Química e Energética de Biomassas e seus Carvões para Injeção em Altos-Fornos. / Characterization of Physical Chemistry and Biomass Energy and its coal for powder injection in blast furnaces

O objetivo geral deste trabalho foi avaliar a viabilidade de utilização de biomassas e seus carvões através da injeção pelas ventaneiras dos Altos-Fornos - técnica conhecida como Injeção de Carvões Pulverizados (ICP). Desta forma, diferentes biomassas e seus carvões tiveram as suas propriedades físicas e químicas avaliadas, sendo realizados tamb

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/03/2010

8. Extração, caracterização e modificação quimica por oxidação de amido de pinhão (Araucaria angustifolia) / Extraction, characterization and chemistry modification by oxidation of Brazilian pine (Araucaria angustifolia)

The Brazilian pine, seed of Araucaria angustifólia (Betortoloni, Otto Kuntze), has a high carbohydrate content, principally starch. The literature is scarce and contradictory in some points, indicating the need for a profound understanding of the characteristics of the starch of this pine, mainly with respect to extraction methods and to chemical modificati

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/03/2009

9. Interaction of SO2 with molecular and ionic species: Raman spectroscopy and theoretical calculations / Interação de SO2 com espécies iônicas e moleculares: espectrocopia raman e cálculos teóricos

In the present work molecular systems bearing the sulfur dioxide (SO2) as an electron acceptor species and several electron donor species as amines (aliphatic and aromatic), inorganic complexes and ionic liquids were investigated. Such complexes are commonly known as donor-acceptor complexes, and in particular, in the case of SO2 complexes are characterized

Publicado em: 2009

10. SÍNTESE, ESTUDOS ESPECTROSCÓPICOS E ESTRUTURAIS DE COMPLEXOS CONTENDO O LIGANTE 4,4- BIPIRIDINA, O ÂNION BARBITURATO E OS ÍONS METÁLICOS DA PRIMEIRA SÉRIE DE TRANSIÇÃO (Fe2+, Co2+, Ni2+, Cu2+ e Zn2+)

This work describes the synthesis and characterization of five new transition metal complexes of general formula MB2Bipy.10H2O (where M = Fe2+, Co2+, Ni2+, Cu2+ and Zn2+, B is barbiturate anion and Bipy is 4,4-bipyridine) . Several physical and spectroscopical techniques were used to characterize the compounds, such as elemental analysis (CHN), thermal analy

Publicado em: 2009

11. O plÃsmon da regiÃo de recobrimento da ligaÃÃo quÃmica como ferramenta para caracterizaÃÃo de materiais

Important issues can be raised about the possibility of relations between macroscopic properties of materials and concepts, introduced recently, of the chemical bond overlap polarizability (PR) and the concept of ionic specific valence (VIE). A proposal in which the overlap region of chemical bond is considered as a âplasmon‐likeâ charge distribution

Publicado em: 2009

12. Caracterização quimica, perfil sensorial e aceitabilidade de novos varietais de banana (Musa ssp) resistentes a Sigatoka-Negra / Characterization chemistry, sensory profile and acceptante the news varietais banana (Musa ssp) resistents Sigatoka Negra

O presente estudo teve por objetivo determinar o perfil sensorial, o perfil físico-químico e a aceitação de consumidores paulistas a varietais de banana tradicionalmente consumidos no Brasil, e varietais alternativos resistentes à Sigatoka-Negra. Oito varietais foram estudados: quatro resistentes à Sigatoka-Negra, Pacovan Ken, Preciosa, Thap Maeo e Cai

Publicado em: 2009