منابع مشابه
Electrolytic depletion interactions.
We consider the interactions between two uncharged planar macroscopic surfaces, immersed in an electrolyte solution, which are induced by interfacial selectivity. These forces are taken into account by introducing a depletion free-energy density functional, in addition to the usual mean-field Poisson-Boltzmann functional. The minimization of the total free-energy functional yields the density p...
متن کاملKinetics of depletion interactions
– Depletion interactions between colloidal particles dispersed in a fluid medium are effective interactions induced by the presence of other types of colloid. They are not instantaneous but build up in time. We show by means Brownian dynamics simulations that the fluctuations in the depletion force between two guest particles in a host dispersion of differently sized colloids do not decay expon...
متن کاملDepletion interactions in colloid-polymer mixtures.
We present a neutron-scattering study of depletion interactions in a mixture of a hard-sphere-like colloid and a nonadsorbing polymer. By matching the scattering length density of the solvent with that of the polymer, we measured the partial structure factor Sc(Q) for the colloidal particles. It is found that the measured Sc(Q) for different colloid and polymer concentrations can be well descri...
متن کاملElectrolytic Chlorogen
appeared a report on Electrolytic Chlorogen by Captain W. Hodgkinson, r.e., and Mr. C. M. Hutchinson, c.i.ii., Imperial Agricultural Bacteriologist of the Agricultural Research Institute, Pusa. The principal objects of this enquiry, which were carried out under the auspices of the Army Department (Simla), were to determine the possibility of preparing in India from indigenous materials and by s...
متن کاملRepulsive depletion interactions in colloid–polymer mixtures
Depletion forces in colloidal systems are known to be entirely attractive, as long as the background of macromolecules is small enough that an ideal gas approach is valid. At higher densities, however, structural correlation effects of the macromolecules which lead to additional repulsive parts in the depletion interaction, have to be taken into account. We have measured the depletion interacti...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 1999
ISSN: 1063-651X,1095-3787
DOI: 10.1103/physreve.60.6549