Results 1 to 10 of about 161,851 (157)

The Future of Sustainable Packaging: Exploring Biodegradable Solutions Through Extrusion, Thermo-Expansion, 3D Printing and Supercritical Fluid from Agro-Industry Waste [PDF]

Foods
Due to environmental disasters caused by the use of plastic packaging, particularly expanded polystyrene (EPS), there is an urgent need to identify sustainable alternatives.
Lacan S. Rabelo, Fabrício C. Tanaka, Sidney S. dos Santos, Fauze A. Aouada, Márcia R. de Moura   +4 more
doaj   +2 more sources

Grafting of L-proline and L-phenylalanine amino acids on kaolinite through synthesis catalyzed by boric acid

Applied Surface Science Advances, 2021
The amidation reaction catalyzed by boric acid between the amino acids proline and phenylalanine and the alkoxide 3-aminopropyltriethoxysilane was studied. Afterwards, the modified alkoxide was used to functionalize the clay mineral kaolinite. The hybrid
Denis T. de Araújo, Katia J. Ciuffi, Eduardo J. Nassar, Miguel A. Vicente, Raquel Trujillano, Vicente Rives, Elena P. Bernal, Emerson H. de Faria   +7 more
doaj   +1 more source

α and γ Alumina Spheres for Azo Dye (Allura Red) Removal from Aqueous Media

Adsorption Science & Technology, 2022
Allura red or Red 40 (R40) is a dye widely used in the food, textile, and pharmaceutical industries; it is considered dangerous because it is soluble in water, and it has high toxicity and resistance to natural degradation.
Jonatan Torres-Pérez, Nahum Medellín-Castillo, Simón Yobanny Reyes-López   +2 more
doaj   +1 more source

Water as a hybrid: an analytical structure based on a hydrosocial approach

Desenvolvimento e Meio Ambiente, 2023
The reductionism promoted by modernity enabled a common sense as to what water was to be molded in the discrete form of H2O. Questioning that unique conception reproduced in studies of water resources and their governance, to the detriment of their ...
Hugo Kamiya Tsutsui, Vanessa Lucena Empinotti   +1 more
doaj   +1 more source

AVALIAÇÃO DE CARACTERES VEGETATIVOS DE HÍBRIDOS DE COQUEIRO (COCOS NUCIFERA L.) NA REGIÃO NÃO PANTANOSA DO MUNICÍPIO DE POCONÉ, MT [PDF]

Revista Brasileira de Fruticultura, 2001
O presente estudo foi realizado entre março de 1999 e março de 2000, na região de Cangas, município de Poconé, MT, com a finalidade de estudar o desenvolvimento inicial de híbridos intervarietais de coqueiros, avaliados para as características ...
HUMBERTO DE CARVALHO MARCILIO, HILTON NEY GAÍVA, JOADIL GONÇALVES DE ABREU, WILSON MENEZES ARAGÃO, JOSÉ CARLOS FRESCHI   +4 more
doaj   +1 more source

Synthesis and characterization of nickel complexes derived from Schiff-Bases

Orbital: The Electronic Journal of Chemistry, 2012
Aromatic Schiff-Bases constitute a large class of organic compounds containing the imine group (C=N) [1-3]. 2-hydroxybenzaldehyde (salicylaldehyde) which has been frequently used for the synthesis of aromatic Schiff-Bases, it has many biological ...
Mirian Y. Matsumoto, Keila B. Dias, Vicente L. Kupfer, Elias B. O. Filho, Larisse G. Salazar, Adalberto V. Mezacasa, Persiely P. Rosa, Nelson Luis de Campos Domingues, Andrelson W. Rinaldi   +8 more
doaj   +1 more source

Inserção de catalisador híbrido na síntese de beta-tiocetonas

Orbital: The Electronic Journal of Chemistry, 2012
The Michael reaction (or Michael addition) involves the addition of a nucleophile, called Michael donor, to an electrophile (α,β-unsaturated), called Michael acceptor. Literature reports several types of nucleophiles applied in this reaction.
Mariana Pompilio Darbem, Andrelson Wellington Rinaldi, Nelson Luis C. Domingues   +2 more
doaj   +1 more source

Híbridos de grafeno/montmorillonita e óxido de grafeno/montmorillonita como nanomateriais funcionais: uma visão da literatura atual [PDF]

Cerâmica, 2021
Resumo Os híbridos derivados de grafeno ou óxido de grafeno e o argilomineral montmorillonita são materiais cuja matriz do filossilicato oferece estabilização das camadas nanométricas das estruturas carbonáceas, além de melhoramento das propriedade ...
F. G. Nunes Filho, A. P. M. Alves, T. R. L. Nascimento, L. R. C. Castellano, M. G. Fonseca   +4 more
doaj   +1 more source

Development of materials consisting of conjugated polymer doped with folic acid

Orbital: The Electronic Journal of Chemistry, 2012
The development of new materials made from the combination between conjugated polymers and new dopants is the objective of various researches groups around the world. This work presented the synthesis and characterization of Polyaniline (PAni) doped with
Vicente Kupfer, Carlos Roberto A. dos Santos, Mirian Y. Matsumoto, Keila B. Diasa, Nelson L. C. Domingues, Andrelson W. Rinaldi   +5 more
doaj   +1 more source

Produtividade de híbridos de milho na região de fronteira agrícola no nordeste do Maranhão. [PDF]

, 2018
O Maranhão é um estado onde a agricultura tecnificada está em rápida expansão e que possui excelente potencial para desenvolvimento do agronegócio e para a exportação de produtos agrícolas. No entanto, ainda é escassa a realização de pesquisas na região,
ARNHOLD, E., CARVALHO, H. W. L. de, OLIVEIRA JÚNIOR, E. A. de, PACHECO, C. A. P., SILVA, R. G.   +4 more
core   +1 more source