Ali Shafiei Souderjani, Mostafa Bakouei, Mohammad Hassan Saidi, and Mojtaba Taghipoor , "Electrophoretic motion of hydrophobic spherical particles in nanopore: Characteristics, separation, and resistive pulse sensing", Physics of Fluids 35, 022005 (2023) https://doi.org/10.1063/5.0136454
Electrophoretic motion of hydrophobic spherical particles in nanopore : characteristics, separation, and resistive pulse sensing
|Author:||Shafiei Souderjani, Ali1; Bakouei, Mostafa2; Saidi, Mohammad Hassan1;|
1Department of Mechanical Engineering, Sharif University of Technology, Tehran, Iran
2Department of Biochemistry and molecular medicine, University of Oulu, Oulu, Finland
|Online Access:||PDF Full Text (PDF, 3 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2023030730374
American Institute of Physics,
|Publish Date:|| 2023-03-07
Electrophoretic motion of hydrophobic particles has been scrutinized numerically in solid-state nanopores. The Poisson, Stokes, and Nernst–Planck equations are solved simultaneously, and the Newton–Raphson algorithm is used to compute the correct velocity at each point. For the hydrophobic surface characterization, the Navier-slip boundary condition with a wide range of slip lengths is applied to the nanoparticle’s surface. The effects of the electric field intensity, the electrolyte concentration, and the particle’s size on the electrophoretic velocity are examined. Then, the nanopore’s size and surface charge density are manipulated to achieve the configuration for separating hydrophobic and hydrophilic particles based on their slip lengths. The results show that the hydrophobic and hydrophilic particles, under particular circumstances, would move in the opposite direction in a nanopore. Finally, the resistive pulses of the particles with various slip lengths are studied. The resistive pulse properties of the hydrophobic and the hydrophilic particles are completely distinguishable and show potential application for resistive pulse sensing as a tool for reckoning the particle’s slip length.
Physics of fluids
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
114 Physical sciences
© AIP Publishing. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Ali Shafiei Souderjani, Mostafa Bakouei, Mohammad Hassan Saidi, and Mojtaba Taghipoor , "Electrophoretic motion of hydrophobic spherical particles in nanopore: Characteristics, separation, and resistive pulse sensing", Physics of Fluids 35, 022005 (2023) https://doi.org/10.1063/5.0136454 and may be found at https://aip.scitation.org/doi/abs/10.1063/5.0136454.