Navegação por Assunto "Suspensoes"
Resultados 1-13 de 13
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Análise através de espalhamento de luz estático e dinâmico de suspensões de nanopartículas poliméricas utilizadas para vetorização de fármacos
(2002) [Resumo publicado em evento] -
Colloidal charge renormalization in suspensions containing multivalent electrolyte
(2010) [Artigo de periódico]A theory is proposed which allows us to self-consistently calculate the effective colloidal charge and the counterion and coion density profiles in suspensions containing both multivalent and monovalent electrolytes. The ... -
Efeitos de correlações eletrostáticas na equação de estado de suspensões coloidais carregadas
(2012) [Tese]No presente trabalho, investigamos os efeitos de correlações eletrostáticas no cálculo de propriedades termodinâmicas em suspensões coloidais carregadas. Esse estudo tem por objetivo estabelecer as causas dos desvios ... -
Effective charge of colloidal particles
(2004) [Artigo de periódico]A new dynamical definition of the effective colloidal charge, especially suitable for the Monte Carlo and Molecular-dynamics simulations, is proposed. It is shown that for aqueous colloidal suspensions containing monovalent ... -
Effects of the dielectric discontinuity on the counterion distribution in a colloidal suspension
(2011) [Artigo de periódico]We introduce a new method for simulating colloidal suspensions with spherical colloidal particles of dielectric constant different from the surrounding medium. The method uses an approximate calculation of the Green function ... -
Electrostatic correlations in colloidal suspensions : density profiles and effective charges beyond the Poisson–Boltzmann theory
(2009) [Artigo de periódico]A theory is proposed which allows us to calculate the distribution of the multivalent counterions around a colloidal particle using the cell model. The results are compared with the Monte Carlo simulations and are found ... -
Equation of state of charged colloidal suspensions and its dependence on the thermodynamic route
(2012) [Artigo de periódico]The thermodynamic properties of highly charged colloidal suspensions in contact with a salt reservoir are investigated in the framework of the renormalized Jellium model (RJM). It is found that the equation of state is ... -
A renormalização de carga em suspensões coloidais iônicas
(2007) [Tese]Nesta tese investigou-se os efeitos da renormalização de carga em suspensões coloidais carregadas. No caso de soluções deionizadas, ou com sal monovalente adicionado, o cálculo da carga efetiva foi realizado com o uso do ... -
Renormalized jellium model for charge-stabilized colloidal suspensions
(2004) [Artigo de periódico]We introduce a renormalized jellium model to calculate the equation of state for charged colloidal suspensions. An almost perfect agreement with Monte Carlo simulations is found. Our self-consistent approach naturally ... -
A self-consistent renormalized jellium approach for calculating structural and thermodynamic properties of charge stabilized colloidal suspensions
(2009) [Artigo de periódico]An approach is proposed which allows to self-consistently calculate the structural and the thermodynamic properties of highly charged aqueous colloidal suspensions. The method is based on the renormalized jellium model ... -
The renormalized Jellium model of colloidal suspensions with multivalent counterions
(2010) [Artigo de periódico]An extension of the renormalized Jellium model which allows to study colloidal suspensions containing trivalent counterions is proposed. The theory is based on a modified Poisson–Boltzmann equation which incorporates the ... -
Thermodynamics of ionic microgels
(2002) [Artigo de periódico]We present a theory of dilute aqueous suspensions of microgel particles. It is found that as the number of charged monomers in the polymer network composing mesoscopic gel increases, the particles undergo a swelling ... -
Weak and strong coupling theories for polarizable colloids and nanoparticles
(2011) [Artigo de periódico]A theory is presented which allows us to accurately calculate the density profile of monovalent and multivalent counterions in suspensions of polarizable colloids or nanoparticles. In the case of monovalent ions, we derive ...