Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 7
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Characterization and Cytotoxic Evaluation of Silver and Gold Nanoparticles Produced with Aqueous Extract of Lavandula dentata L. in Relation to K-562 Cell Line BABT
Justus,Barbara; Arana,Andrés Fernando Montenegro; Gonçalves,Melissa Marques; Wohnrath,Karen; Boscardin,Patrícia Mathias Döll; Kanunfre,Carla Cristine; Budel,Jane Manfron; Farago,Paulo Vitor; Paula,Josiane de Fátima Padilha de.
Abstract Metallic nanoparticles have great potential as a chemotherapeutic agent. The aim of this study was to develop and characterize silver and gold nanoparticles using a simple method, as well as evaluating the potential cytotoxic activity in relation to the K-562 cell line. For the synthesis, a solution containing the metallic ions was subjected to magnetic stirring with the aqueous extract of Lavandula dentata L. and a change of colour was observed. With the data obtained from the analyses we concluded that the nanoparticles were successfully obtained by a simple and green method using the aqueous extract of L. dentata. The obtained nanoparticles presented a reduced size, a low level of polydispersion, and a homogenous spherical shape. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Green synthesis; Metallic nanoparticles; Myelogenous leukemia line; Cytotoxic potential; Lamiaceae.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100420
Imagem não selecionada

Imprime registro no formato completo
Chemical Composition and Biological Activities of The Essential Oil And Anatomical Markers Of Lavandula Dentata L. Cultivated In Brazil BABT
Justus,Barbara; Almeida,Valter Paes de; Gonçalves,Melissa Marques; Assunção,Daniele Priscila da Silva Fardin de; Borsato,Debora Maria; Arana,Andres Fernando Montenegro; Maia,Beatriz Helena Lameiro Noronha Sales; Paula,Josiane de Fátima Padilha de; Budel,Jane Manfron; Farago,Paulo Vitor.
ABSTRACT Lavandula dentata, popularly known as lavender, is commonly used in traditional medicine for the treatment of digestive and inflammatory disorders. The objective of this study was to analyzed the chemical oil composition, antioxidant and antimicrobial activities of the essential oil and anatomical markers of the leaf and stem of L. dentata cultivated in South Brazil. Essential oil showed an antioxidant activity similar to rutin and gallic acid when analyzed by phosphomolybdenum method. However, by the free radical DPPH and ABTS methods, it showed a slight potential antioxidant. Essential oil presented 1,8-cineol (63%) as major component, antimicrobial activity against Gram-positive, Gram-negative bacteria strains and Candida albicans, by broth...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anatomy; Antimicrobial; Antioxidant; Lamiaceae; Quality control; Volatile oil.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100441
Imagem não selecionada

Imprime registro no formato completo
Macro and microscopic characters of the aerial vegetative organs of Carqueja: Baccharis usterii Heering BABT
Budel,Jane Manfron; Duarte,Márcia do Rocio.
This work aimed to study the macro and microscopic characters of the aerial vegetative organs of Baccharis usterii for quality control purposes. The plant was prepared for light and scanning electron microscopic analyses. The stem consisted of three-winged cladodes with small leaves. In the caulinar axis, these was a uniseriate epidermis, chlorenchyma alternating with angular collenchyma, perivascular fibre caps adjoining the phloem which was outside the xylem, and parenchymatic pith. The wings and the leaves were alike, presenting a uniseriate epidermis, palisade parenchyma next to the both sides of the epidermis and spongy parenchyma traversed by minor collateral vascular bundles in the central region. In the leaf midrib, a single collateral vascular...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Baccharis usterii; Carqueja; Medicinal plant; Morpho-anatomy; Secretory ducts.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000100016
Imagem não selecionada

Imprime registro no formato completo
Anatomical Characters of Leave and Stem of Calea serrata Less., Asteraceae BABT
Camilotti,Júlia Gabriela; Biu,Ciane Costa; Farago,Paulo Vitor; Santos,Vera Lúcia Pereira dos; Franco,Celia Regina Cavichiolo; Budel,Jane Manfron.
The genus Calea belongs to the tribe Heliantheae and presents about 125 species. Calea serrata, popularly known as erva-de-cobra, chá-amargo and quebra-tudo, is an endemic species found in southern Brazil and is used in traditional medicine to treat ulcers and livers problems. The present work aimed to study the pharmacobotanical characters of leaves and stems of C. serrata for quality control purposes. The plant material was processed according to standard methods of light and scanning electron microscopy. Glandular capitate-stalked and capitate-sessile, uniseriate multicellular non-glandular trichome with tapered apical cell, conical non-glandular trichome, isobilateral mesophyll, secretory ducts near the endoderm and circular shape with six ribs in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Calea serrata; Anatomical study; Quality control.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000600867
Imagem não selecionada

Imprime registro no formato completo
Análise morfoanatômica comparativa de duas espécies de carqueja: Baccharis microcephala DC. e B. trimera (Less.) DC., Asteraceae BJPS
Budel,Jane Manfron; Duarte,Márcia do Rocio.
A identificação de espécies de Baccharis que são constituídas de cladódios, ou seja, caules alados, apresenta dificuldades até mesmo para especialistas em taxonomia vegetal. Baccharis microcephala e B. trimera pertencem ao grupo Trimera e são conhecidas vulgarmente como carquejas. Na medicina popular, é comum o uso de espécies aladas para a aplicação terapêutica como diurético, hepatoprotetor e digestivo. Baccharis trimera consta na F. Bras. IV e possui atividades antiinflamatória, analgésica, bacteriostática, bactericida e antidiabética. As espécies B. trimera e B. microcephala são freqüentemente confundidas e utilizadas pela população para as mesmas finalidades terapêuticas. Objetivou-se estudar a morfologia externa e a anatomia dos cladódios dessas...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Asteraceae; Baccharis microcephala; Baccharis trimera; Controle de qualidade; Morfoanatomia.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000100009
Imagem não selecionada

Imprime registro no formato completo
Preparation and characterization of a novel antimicrobial film dressing for wound healing application BJPS
Gonçalves,Melissa Marques; Carneiro,Jaqueline; Justus,Barbara; Espinoza,Joel Toribio; Budel,Jane Manfron; Farago,Paulo Vitor; Paula,Josiane Padilha de.
Antibacterial activity and good mechanical properties are some of the characteristics required for an appropriate film dressing. A novel polymer blend was developed for wound healing application. Twenty-four formulations using the polymers chitosan, poly(vinyl alcohol) and/or ɛ-Polylysine and the plasticizer glycerol were designed using factorial design and then the films were prepared by the casting/solvent evaporation method. Seventeen films were obtained among the twenty-four proposed formulations that were characterized by Field Emission Scanning Electron Microscopy (FE-SEM) and Fourier Transform Infrared Spectroscopy (FTIR). Mechanical properties, such as tensile strength (σ), elongation at break (ɛ) and Young’s modulus (Y) as well as antibacterial...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chitosan; Poly(vinyl alcohol); Ɛ-Polylysine; Semi-occlusive dressing.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100631
Imagem não selecionada

Imprime registro no formato completo
Preparation and characterization of liposomes loaded with silver nanoparticles obtained by green synthesis BJPS
Espinoza,Joel Toribio; Novak,Robson Schimandeiro; Magalhães,Cássia Gonçalves; Budel,Jane Manfron; Justus,Barbara; Gonçalves,Melissa Marques; Boscardin,Patricia Mathias Döll; Farago,Paulo Vitor; Paula,Josiane de Fátima Padiha De.
The objective of this work was to develop and characterize liposomes loaded with silver nanoparticles (LAgNPs) to show improvement in stability characteristics. AgNPs were prepared by the green synthesis method with Aloe vera gel extract and exposure to sunlight. Liposomes were prepared by the modified reverse phase method. Particle size, polydispersity index, zeta potential, as well as the scanning electron microscopy (SEM) morphological aspects of AgNPs and LAgNPs were evaluated. In addition, was used flame atomic absorption spectroscopy to determine the amount of AgNP that was encapsulated in liposomes. The AgNPs presented as amorphous and polydisperse structures, with a mean diameter of 278.46 nm and zeta potential of -18.3 mV. LAgNPs had a mean...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Silver nanoparticles; Aloe vera; Sunlight; Liposomes.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100625
Registros recuperados: 7
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional