Comparative electrophoretic mobility and streaming current study for ζ-potential determination

El-Gholabzouri, O.; Cabrerizo, M.A.; Hidalgo‐Álvarez, R.

doi:10.1016/s0927-7757(99)00280-0

Cited by 11 publications

(7 citation statements)

References 17 publications

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“…It has also been suggested that streaming currents in fluidic channels may provide a simple and effective means of converting hydrostatic pressure differences into electrical energy [11], and that this process becomes particularly efficient in the nano regime where double layers overlap [10]. Streaming currents have been primarily studied on systems involving many channels in parallel, using materials such as sandstone cores [12], porous glass [11], and columns packed with latex beads [13]. While studies have appeared on single channels in the micron range [6,14,15], nanofabrication now permits us to investigate streaming currents in well-defined, nanoscale geometries where double layers may overlap.…”

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confidence: 99%

Streaming Currents in a Single Nanofluidic Channel

2005

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We report measurements of the streaming current, an electrical current generated by a pressure-driven liquid flow, in individual rectangular silica nanochannels down to 70 nm in height. The streaming current is observed to be proportional to the pressure gradient and increases with the channel height. As a function of salt concentration, it is approximately constant below 10 mM, whereas it strongly decreases at higher salt. Changing the sign of the surface charge is found to reverse the streaming current. The data are best modeled using a nonlinear Poisson-Boltzmann theory that includes the salt-dependent hydration state of the silica surface.

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confidence: 99%

Streaming Currents in a Single Nanofluidic Channel

2005

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“…However, there are substantial discrepancies for the smaller latex sample with the higher surface charge density. These discrepancies are interpreted in terms of the effect of the surface conductance on the electrokinetic signal [44].…”

Section: Mechanism Of Operation Of the Streaming Current Detectormentioning

confidence: 98%

“…El-Gholabzouri et al [44] compared the Zeta potential obtained from streaming current and electrophoretic mobility determinations. The electrokinetic experiments were realized using two anionic polystyrene latexes whose surface charge density and average particle diameter were -9.8 and -3.4 µC cm -2 and 0.65 and 1.2 µm, respectively.…”

Section: Mechanism Of Operation Of the Streaming Current Detectormentioning

confidence: 99%

Controlling Coagulation Process: From Zeta Potential to Streaming Potential

Ghernaout¹

2015

AJEP

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This review concerns the using of Zeta and streaming potentials in the coagulation process control. Coagulation process is usually explained by charge neutralization mechanism. The negative charge may be quantified by Zeta potential or streaming potential measures. Prior to the advent of streaming current monitors, Zeta meters were the primary instruments for measuring electrokinetic properties as related to coagulant dose. Both instruments measure the potential and indirectly the particle surface charge, but use very different methods. Even if the on-line streaming current monitor can provide coagulation process optimization when properly installed, maintained, and interpreted, jar tests experiments and Zeta meters remain indispensable.

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“…[128] Streaming currents in fluidic nanochannel systems can be a relatively simple and efficient method for converting hydrostatic pressure differences into electrical energy. [129] In primary studies, streaming currents were investigated using systems containing parallel channels such as porous glass, [129] sandstone cores, [130] columns packed with latex beads [131] and single channels in the micron range. [132][133][134][135] In recent years, numerous studies in the literature have focused on the streaming currents in nanochannels systems.…”

Section: Streaming Current Induced By a Pressure Dropmentioning

confidence: 99%

Ion Selective Nanochannels: From Critical Principles to Sensing and Biosensing Applications

Soozanipour

Sohrabi

Abazar

et al. 2021

Adv Materials Technologies

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High throughput; (D) Mold and releasing issue, hard to form deep channels Large scale channel array, 2D channel, 1D nanoslit Thin film deposition 30-200 Polysilicon, Silicon dioxide, Silicon nitride, polymer (A) simple process, low cost, fast; (D) Hard to form uniform channels large scale array, 2D channel, 1D nanoslit Hot embossing >50 PET, PC, PS, PMMA, etc. (A) Simple process, low cost; (D) Easy to deformation Large scale array, 2D channel, 1D nanoslit deformation of PDMS 100-800 PDMS (A) Simple process, low cost; (D) Low yield large scale array, V-shaped channel, 2D channel Stress release 20-800 PS, PDMS, Photoresist (A) Low cost, maskless, simple process; (D) Low resolution, Low yield large scale array, V-shaped channel, 1D nanoslit Molecular self-assembly 20-800 Ti, Silicon, Polymer, etc. (A) Low cost; (D) Complex process, Low yield 2D channel, 1D nanoslit

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Comparative electrophoretic mobility and streaming current study for ζ-potential determination

Cited by 11 publications

References 17 publications

Streaming Currents in a Single Nanofluidic Channel

Streaming Currents in a Single Nanofluidic Channel

Controlling Coagulation Process: From Zeta Potential to Streaming Potential

Ion Selective Nanochannels: From Critical Principles to Sensing and Biosensing Applications

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