Results 21 to 30 of about 2,858 (228)

ELECTROKINETICS [PDF]

open access: yesJournal of General Physiology, 1935
1. The question of the critical pore diameter for streaming potential is discussed. 2. The surface charge is calculated for cellulose in contact with solutions of K3PO4, K2CO3, K2SO4, KCl, and ThCl4. 3. The surface charge of cellulose in contact with a solution of 2 x 10–4 N NaCl is calculated as a function of temperature ...
Laurence S. Moyer, Henry B. Bull
openaire   +1 more source

Numerical solution of the dielectrophoretic and travelling wave forces for interdigitated electrode arrays using the finite element method [PDF]

open access: yes, 2002
AC electrokinetics is the study of the movement of polarisable particles under the influence of AC electric fields. The fields are applied to a suspension of particles by planar microelectrode structures and one particular design, the interdigitated bar ...
Ramos, Antonio   +5 more
core   +1 more source

Selective Retrieval of Individual Cells from Microfluidic Arrays Combining Dielectrophoretic Force and Directed Hydrodynamic Flow

open access: yesMicromachines, 2020
Hydrodynamic-based microfluidic platforms enable single-cell arraying and analysis over time. Despite the advantages of established microfluidic systems, long-term analysis and proliferation of cells selected in such devices require off-chip recovery of ...
Pierre-Emmanuel Thiriet   +5 more
doaj   +1 more source

AC Electrokinetics: Applications for Nanotechnology

open access: yes, 2015
The phenomena of dielectrophoresis and electrorotation, collectively referred to as AC electrokinetics, have been used for many years to study, manipulate and separate particles on the nanotechnology, that is the precise manipulation of particles on the ...
Hughes, MP
core   +2 more sources

Analysis of Homogeneous/Heterogeneous Reactions in an Electrohydrodynamic Environment Utilizing the Second Law

open access: yesMicromachines, 2023
In this study, we investigate what happens to entropy in the presence of electrokinetic phenomena. It is speculated that the microchannel has an asymmetrical and slanted configuration.
Farida Aslam   +3 more
doaj   +1 more source

Determination of the Empirical Electrokinetic Equilibrium Condition of Microorganisms in Microfluidic Devices

open access: yesBiosensors, 2020
The increased concern regarding emerging pathogens and antibiotic resistance has drawn interest in the development of rapid and robust microfluidic techniques to analyze microorganisms.
Adriana Coll De Peña   +2 more
doaj   +1 more source

Controllable pH Manipulations in Micro/Nanofluidic Device Using Nanoscale Electrokinetics

open access: yesMicromachines, 2020
Recently introduced nanoscale electrokinetic phenomenon called ion concentration polarization (ICP) has been suffered from serious pH changes to the sample fluid.
Jae Suk Park, Jeewhan Oh, Sung Jae Kim
doaj   +1 more source

Fine-Tuning Electrokinetic Injections Considering Nonlinear Electrokinetic Effects in Insulator-Based Devices

open access: yesMicromachines, 2021
The manner of sample injection is critical in microscale electrokinetic (EK) separations, as the resolution of a separation greatly depends on sample quality and how the sample is introduced into the system.
Abbi Miller   +3 more
doaj   +1 more source

Comment on “Can Charge Transfer Across C─H···O Hydrogen Bonds Stabilize Oil Droplets in Water?”

open access: yesAngewandte Chemie, EarlyView.
Nanoscale oil droplets in water are kinetically stable and charged, with a pH dependent electrophoretic mobility. Although the source of this charge is agreed to arise from water, 2 main hypotheses remain: OH− adsorption or electronic charge density displaced via hydrogen bonds. Molecular surface specific experiments are reviewed, that all point to the
P. Singh   +3 more
wiley   +2 more sources

Quantification of Vortex Generation Due to Non-Equilibrium Electrokinetics at the Micro/Nanochannel Interface: Spectral Analysis

open access: yesMicromachines, 2016
We report on our investigation of a low Reynolds number non-equilibrium electrokinetic flow in a micro/nanochannel platform. Non-equilibrium electrokinetic phenomena include so-called concentration polarization in a moderate electric field and vortex ...
Seung Jun Lee   +3 more
doaj   +1 more source

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