Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 1 de 1
Filtrar
Mais filtros











Base de dados
Intervalo de ano de publicação
1.
Phys Chem Chem Phys ; 17(1): 414-21, 2015 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-25407573

RESUMO

The interaction of Co hexagonal magnetic nanoparticles (MNPs) with distearoyl phosphatidyl glycerol (DSPG) and distearoyl phosphatidic acid (DSPA) films adsorbed at a water/1,2-dichloroethane interface is studied employing cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), capacity curves and interfacial pressure-area isotherms. DSPA and DSPG adsorb at the interface forming homogenous films and producing a blocking effect on the transfer process of tetraethyl ammonium (TEA(+)), used as a probe cation. In the presence of Co NPs this effect is reversed and the reversible transfer process for TEA(+) is reestablished, to a greater or lesser extent depending on the structuration of the film. Co-DSPA hybrid films have a homogeneous structure while Co-DSPG films present different domains. Moreover, the presence of Co on DSPA film modifies the partition coefficient of the organic electrolyte into the hydrocarbon layer.


Assuntos
Nanopartículas de Magnetita/química , Fosfolipídeos/química , Adsorção , Dicloretos de Etileno/química , Ácidos Fosfatídicos/química , Fosfatidilgliceróis/química , Propriedades de Superfície , Água/química
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA