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	Provedor de dados Anais da ABC (AABC) (2) BJM (1) Autor CASTRO,MARIA CLÍCIA S. (1) CORTEZ,CÉLIA M. (1) Elghmari,Abderrahmene (1) Ellouali,Mostapha (1) Hamadi,Fatima (1) Latrache,Hassan (1) SILVA JUNIOR,IZAN M. (1) SILVA,DILSON (1) SOUTO-PADRÓN,THAÏS (1) Timinouni,Mohamed (1) Zahir,Hafida (1) Mais... Palavra-chave Electrophoretic mobility (3) Cell surface charge (1) Cytochemistry (1) Electric potential profile (1) Erythrocyte membrane (1) Escherichia coli (1) Glycocalyx (1) Hydrodynamic effects. (1) Hydrophobicity (1) Modeling (1) Surface functional groups (1) Trypanosomatids (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2016 (1) 2008 (1) 2002 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Relevance of Hydrodynamic Effects for the Calculation of Outer Surface Potential of Biological Membrane Using Electrophoretic Data Anais da ABC (AABC) SILVA JUNIOR,IZAN M.; CASTRO,MARIA CLÍCIA S.; SILVA,DILSON; CORTEZ,CÉLIA M.. ABSTRACT In this paper, we present the results of a study on the influence of hydrodynamic effects on the surface potentials of the erythrocyte membrane, comparing two different models formulated to simulate the electrophoretic movement of a biological cell: the classical Helmholtz-Smoluchowski model and a model presented by Hsu et al. (1996). This model considers hydrodynamic effects to describe the distribution of the fluid velocity. The electric potential equation was obtained from the non-linear Poisson-Boltzmann equation, considering the spatial distribution of electrical charges fixed in glycocalyx and cytoplasmic proteins, as well as electrolyte charges and ones fixed on the surfaces of lipidic bilayer. Our results show that the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Modeling; Electric potential profile; Erythrocyte membrane; Electrophoretic mobility; Glycocalyx; Hydrodynamic effects.. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300751 The surface charge of trypanosomatids Anais da ABC (AABC) SOUTO-PADRÓN,THAÏS. The surface charge of trypanosomatids was evaluated by means of the binding of cationic particles, as visualized by electron microscopy and by direct measurements of the electrophoretic mobility of cells. The results obtained indicate that most of the trypanosomatids exhibit a negatively charged surface whose value is species specific and varies according to the developmental stages. Sialic acids associated with glycoproteins, glycolipids and phosphate groups are the major components responsible for the net negative surface charge of the trypanosomatids. Tipo: Info:eu-repo/semantics/article Palavras-chave: Trypanosomatids; Cell surface charge; Electrophoretic mobility; Cytochemistry. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000400007 The relation between Escherichia coli surface functional groups' composition and their physicochemical properties BJM Hamadi,Fatima; Latrache,Hassan; Zahir,Hafida; Elghmari,Abderrahmene; Timinouni,Mohamed; Ellouali,Mostapha. Escherichia coli surface characteristics including hydrophobicity, electrophoretic mobility and surface functional groups' composition were investigated. These characteristics were determined respectively by water contact angle measurements, microelectrophoresis and x-ray photoelectron spectroscopy (XPS). The relation between the physicochemical properties and functional groups' composition was also examined. The electrophoretic mobility at pH 7 appeared to be governed on the cell surface by the (O=C) functional groups. The cell surface's hydrophilicity was associated with high levels of (C-(O.N)) and (OH-(C-O-C)) functional groups, whereas the cell surface's hydrophobicity was associated with (C-(C,H)) functional groups. Tipo: Info:eu-repo/semantics/article Palavras-chave: Escherichia coli; Surface functional groups; Hydrophobicity; Electrophoretic mobility. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000100003 Registros recuperados: 3 Primeira ... 1 ... Última

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