Depletion induced isotropic-isotropic phase separation in suspensions of rod-like colloids
نویسندگان
چکیده
منابع مشابه
Depletion induced isotropic-isotropic phase separation in suspensions of rod-like colloids.
When non-adsorbing polymers are added to an isotropic suspension of rod-like colloids, the colloids effectively attract each other via depletion forces. We performed Monte Carlo simulations to study the phase diagram of such rod-polymer mixture. The colloidal rods were modeled as hard spherocylinders; the polymers were described as spheres of the same diameter as the rods. The polymers may over...
متن کاملIsotropic-cholesteric phase transition of filamentous virus suspensions as a function of rod length and charge.
The viruses studied are genetically engineered, charged, semiflexible filamentous bacteriophages that are structurally identical to M13 virus, but differ either in contour length or surface charge. While varying contour length (L) we assume the persistence length (P) remains constant, and thus we alter the rod flexibility (L/P) . Surface charge is altered both by changing solution pH and by com...
متن کاملMicrophase separation induced by interfacial segregation of isotropic, spherical nanoparticles.
In a recent experiment by Chung et al. [Nano Lett. 5, 1878 (2005)] and simulation by Stratford et al. [Science 309, 2198 (2005)] on immiscible blends containing nanoscale particles, it was shown that the phase separation of the two polymers can be prevented as a result of the aggregation of the nanoparticles at the interfaces between the two polymers. Motivated by these studies, we performed la...
متن کاملSurface induced phase separation and pattern formation at the isotropic interface in chiral nematic liquid crystals.
We study the pattern formation of a chiral nematic liquid crystal under a wetting transition. In the isotropic-liquid crystal transition, a surface-enhanced effect happens and a thin liquid crystal layer forms at the substrates of the cell. In this confined system, chirality, elastic anisotropy, surface anchoring, and wetting strength interplay. A striped pattern is formed due to the chiral nat...
متن کاملInteraction potential and near wall dynamics of spherical colloids in suspensions of rod-like fd-virus.
Averaged diffusivities of spherical colloids in solutions of rod-like particles, i.e. fd-virus, were measured with EWDLS and TIRM. While the experimentally observed near wall dynamics of the spheres in the absence of fd are well described by standard hydrodynamic theories, there are significant deviations at finite fd concentrations. Both experimental methods yield data which are significantly ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2007
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.2815805