4.4 Article

Diffusiophoretic velocity of a large spherical colloidal particle in a solution of general electrolytes

Related references

Note: Only part of the references are listed.
Article Biochemical Research Methods

Approximate analytic expressions for the diffusiophoretic velocity of a spherical colloidal particle

Hiroyuki Ohshima

Summary: The general expression for the diffusiophoretic velocity of a spherical colloidal particle in a concentration gradient of symmetrical electrolyte is derived, from which simple approximate analytic expressions correcting up to the order of 1/kappa a are obtained. It is found that the approximate expressions correcting up to the unity order can be applied for kappa a >= 50 with negligible errors, while the expressions correcting up to the 1/kappa a order can be applied for kappa a >= 20 with negligible errors.

ELECTROPHORESIS (2022)

Article Mechanics

Diffusiophoresis of a highly charged soft particle in electrolyte solutions induced by diffusion potential

Yvonne Wu et al.

Summary: This theoretical study investigates diffusiophoresis of a single soft particle in an electrolyte solution with induced diffusion potential. The electrokinetic parameters are extensively examined, with a focus on the nonlinear effects of highly charged particles. The research reveals that soft particles move fastest in dilute electrolyte solutions and that the size of the particle plays a significant role in its mobility under various structural and electrokinetic conditions.

PHYSICS OF FLUIDS (2021)

Article Biochemical Research Methods

Diffusiophoresis of a highly charged soft particle normal to a conducting plane

Yvonne Wu et al.

Summary: Diffusiophoresis of a highly charged soft particle normal to a conducting solid plane in electrolyte solutions was investigated theoretically in this study. The research found that the closer the particle is to the plane, the faster it moves in general, under the influence of chemiphoresis. The presence of the conducting plane has three effects on particle motion nearby: geometric boundary confinement effect, electrostatic mirror-image force analog effect, and hydrodynamic retarding effect.

ELECTROPHORESIS (2021)

Article Mechanics

Impact of ion partitioning and double layer polarization on diffusiophoresis of a pH-regulated nanogel

Partha Sarathi Majee et al.

Summary: This study investigates diffusion of a charge regulated spherical polyelectrolyte nanogel under externally imposed ionic concentration gradient, taking into account various factors such as ion partitioning effects and chemiphoresis. The modified governing equations are numerically solved to obtain results in good agreement with existing analytical solutions. Diffusiophoresis mechanism is illustrated through measurements of induced electric field and effective charge density, showing dependence on electrokinetic parameters and higher diffusiophoretic velocity for pH > IEP compared to pH < IEP.

MECCANICA (2021)

Review Mechanics

Diffusiophoretic separation of colloids in microfluidic flows

Sangwoo Shin

PHYSICS OF FLUIDS (2020)

Article Chemistry, Physical

Diffusiophoresis in Suspensions of Charged Soft Particles

Wei C. Lin et al.

COLLOIDS AND INTERFACES (2020)

Article Chemistry, Physical

Diffusiophoresis: from dilute to concentrated electrolytes

Ankur Gupta et al.

SOFT MATTER (2020)

Article Physics, Fluids & Plasmas

Diffusiophoretic and diffusioosmotic velocities for mixtures of valence-asymmetric electrolytes

Ankur Gupta et al.

PHYSICAL REVIEW FLUIDS (2019)

Article Chemistry, Physical

Diffusiophoresis of a charged porous shell in electrolyte gradients

Yen Z. Yeh et al.

COLLOID AND POLYMER SCIENCE (2018)

Article Nanoscience & Nanotechnology

Diffusiophoresis of a charged particle in a charged cavity with arbitrary electric double layer thickness

Ya C. Chiu et al.

MICROFLUIDICS AND NANOFLUIDICS (2018)

Article Chemistry, Physical

Diffusiophoresis of a Charged Porous Particle in a Charged Cavity

Ya C. Chiu et al.

JOURNAL OF PHYSICAL CHEMISTRY B (2018)

Article Nanoscience & Nanotechnology

Electrophoresis and diffusiophoresis of a colloidal sphere with double-layer polarization in a concentric charged cavity

Han C. Chiu et al.

MICROFLUIDICS AND NANOFLUIDICS (2017)

Article Chemistry, Analytical

Diffusiophoresis of a pH-regulated polyelectrolyte in a pH-regulated nanochannel

Jyh-Ping Hsu et al.

SENSORS AND ACTUATORS B-CHEMICAL (2017)

Article Chemistry, Physical

Incorporation of ion and solvent structure into mean-field modeling of the electric double layer

Klemen Bohinc et al.

ADVANCES IN COLLOID AND INTERFACE SCIENCE (2017)

Article Biochemical Research Methods

Diffusiophoresis of a charged particle in a microtube

Han C. Chiu et al.

ELECTROPHORESIS (2017)

Review Chemistry, Physical

Diffusiophoresis of charged particles and diffusioosmosis of electrolyte solutions

Huan J. Keh

CURRENT OPINION IN COLLOID & INTERFACE SCIENCE (2016)

Article Chemistry, Physical

Diffusiophoresis of a charged, rigid sphere in a Carreau fluid

Shiojenn Tseng et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2016)

Article Chemistry, Physical

Approximate expression for the electrophoretic mobility of a spherical colloidal particle in a solution of general electrolytes

H Ohshima

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2005)

Article Chemistry, Physical

On the limiting electrophoretic mobility of a highly charged colloidal particle in an electrolyte solution

H Ohshima

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2003)