Patchy colloidal particles at the fluid–fluid interface

Soft Matter ◽  
2018 ◽  
Vol 14 (46) ◽  
pp. 9457-9465 ◽  
Author(s):  
Chung Chi Chio ◽  
Ying-Lung Steve Tse
Keyword(s):  
Colloidal Particles ◽  
Particle Density ◽  
Fluid Interface ◽  
Depletion Force

Imbalance of solvent particle density leads to depletion force.

Depletion Force between Anisometric Colloidal Particles†

Langmuir ◽  
2011 ◽  
Vol 27 (2) ◽  
pp. 646-650 ◽  
Author(s):  
S. Krüger ◽  
H.-J. Mögel ◽  
M. Wahab ◽  
P. Schiller
Keyword(s):  
Colloidal Particles ◽  
Depletion Force

scholarly journals Curvature dynamics and long-range effects on fluid–fluid interfaces with colloids

Soft Matter ◽  
2019 ◽  
Vol 15 (13) ◽  
pp. 2848-2862 ◽  
Author(s):  
A. Tiribocchi ◽  
F. Bonaccorso ◽  
M. Lauricella ◽  
S. Melchionna ◽  
A. Montessori ◽  
...  
Keyword(s):  
Long Range ◽  
Colloidal Particles ◽  
Fluid Interfaces ◽  
Fluid Interface ◽  
Fluid Mixture ◽  
Binary Fluid ◽  
Interface Curvature

The fluid–fluid interface curvature can provide new insights into local inhomogeneities of a binary fluid mixture containing colloidal particles.

scholarly journals SUBPOPULATIONS OF BLOOD LYMPHOCYTES DEMONSTRATED BY QUANTITATIVE CYTOCHEMISTRY

1971 ◽  
Vol 19 (7) ◽  
pp. 426-433 ◽  
Author(s):  
FILIBERTO GIACOMELLI ◽  
JOSEPH WIENER ◽  
JOANNA V. POMERANZ ◽  
ALDEN V. LOUD ◽  
JOSEPH B. KRUSKAL
Keyword(s):  
Electron Microscopy ◽  
Cell Surface ◽  
Guinea Pigs ◽  
Colloidal Particles ◽  
Particle Density ◽  
Surface Membrane ◽  
Statistical Test ◽  
Blood Lymphocytes ◽  
Quantitative Cytochemistry ◽  
Number Of Particles

The cell coats of glutaraldehyde-fixed blood lymphocytes from guinea pigs have been stained with Thorotrast and examined by electron microscopy. The lymphocytes have been classified into three groups with respect to the concentration and distribution of colloidal particles over their surfaces. The average number of particles per micron length of cell surface membrane, the particle density, has then been measured for each class of cells. These values are distributed into two clusters separated by a gap. A new statistical test for bimodality has been devised to evaluate the significance of such a gap in terms of its "dip intensity." The results of this analysis demonstrate the existence of at least two distinct populations of blood lymphocytes, indistinguishable by other morphologic criteria.

Capillary meniscus interaction between colloidal particles attached to a liquid—fluid interface

1992 ◽  
Vol 151 (1) ◽  
pp. 79-94 ◽  
Author(s):  
P.A Kralchevsky ◽  
V.N Paunov ◽  
I.B Ivanov ◽  
K Nagayama
Keyword(s):  
Colloidal Particles ◽  
Fluid Interface

Comment on “Curvature capillary migration of microspheres” by N. Sharifi-Mood, I. B. Liu and K. J. Stebe, Soft Matter, 2015, 11, 6768

Soft Matter ◽  
2016 ◽  
Vol 12 (2) ◽  
pp. 328-330 ◽  
Author(s):  
P. Galatola
Keyword(s):  
Soft Matter ◽  
Colloidal Particles ◽  
Fluid Interface

Spherical colloidal particles floating at a fluid interface shaped as a uniform saddle, with equilibrium wetting conditions at the Young angle.

scholarly journals Dispersive shock waves in colloids with temperature dependent compressibility

2014 ◽  
Vol 23 (04) ◽  
pp. 1450043 ◽  
Author(s):  
A. Azmi ◽  
T. R. Marchant
Keyword(s):  
Shock Wave ◽  
Solitary Waves ◽  
Colloidal Particles ◽  
Particle Density ◽  
Modulational Instability ◽  
Particle Interaction ◽  
Interaction Model ◽  
Effect Of Temperature ◽  
Temperature Dependent ◽  
Initial Jump

The formation of a dispersive shock wave in a colloidal medium, due to an initial jump in the light intensity, is studied. The compressibility of the colloidal particles is modeled using a series in the particle density, or packing fraction, where the virial coefficients depend on the particle interaction model. Both the theoretical hard disk and sphere repulsive models, and a model with temperature dependent compressibility, are considered. Experimental results for the second virial coefficient show that it is temperature dependent and that the particle interactions can be either repulsive or attractive. These effects are modeled using a power-law relationship. The governing equation is a focusing nonlinear Schrödinger-type equation with an implicit nonlinearity. The initial jump is resolved via a dispersive shock wave which forms before the onset of modulational instability. A semi-analytical solution is developed for the one-dimensional line bore case which predicts the amplitude of the solitary waves which form in the dispersive shock wave. The solitary wave amplitude versus jump height diagrams can exhibit three different kinds of behaviors. A unique solution, an S-shaped solution curve and multiple solution branches where the upper branch has separated from the lower branches. A bifurcation from the low to the high power branch can occur for many parameter choices as the amplitude of the initial jump increases. The effect of temperature on the evolution of the bore, the amplitude of the solitary waves and the bifurcation patterns are all discussed and the semi-analytical solutions are found to be very accurate.

scholarly journals Spontaneous nucleation on flat surface by depletion force in colloidal suspension

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Nobutomo Nakamura ◽  
Yuto Sakamoto ◽  
Hirotsugu Ogi
Keyword(s):  
Concentration Ratio ◽  
Colloidal Particles ◽  
Flat Surface ◽  
Colloidal Crystal ◽  
Colloidal Suspension ◽  
Polymer Concentration ◽  
Rate Equations ◽  
Nucleation Process ◽  
Spontaneous Nucleation ◽  
Depletion Force

AbstractNucleation by sedimentation of colloidal particles on a flat surface is experimentally observed, and effect of attractive depletion force generated by polymers on nucleation is investigated. Sedimentation forms polycrystalline colloidal crystal on a flat surface, and above the threshold polymer concentration, ratio of the spontaneous nucleation increases, resulting in a decrease in the grain size, whereas dependence of the contact angle on the polymer concentration was not observed. We show that the interaction between particles and the flat surface mainly affects the spontaneous nucleation, not the interaction between the particles, and it is demonstrated that the nucleation process can be numerically reproduced using the rate equations.

Sign in / Sign up

Export Citation Format

Share Document