The Discovery of Electrokinetic Phenomena: Setting the Record Straight

Biscombe, Christian J. C.

doi:10.1002/anie.201608536

Cited by 24 publications

(17 citation statements)

References 30 publications

(43 reference statements)

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“…He stated that the liquid between the poles of a battery is continuously driven from the positive pole toward the negative pole. He also believed that the presence of porous barriers makes this movement visible by counteracting the impact of gravity [28]. While some previous works supported his conclusions [31,32], later in this article we will show that according to our modern understanding, these conclusions are false.…”

Section: History and Backgroundmentioning

confidence: 59%

“…While some previous works supported his conclusions [31,32], later in this article we will show that according to our modern understanding, these conclusions are false. Biscombe [28] has reviewed the history of EOF discovery, which can be referred for further details.…”

Section: History and Backgroundmentioning

confidence: 99%

“…Thus, it is expected that the EDLs interact. This interaction of the EDLs [28] of the experiments done by Reuss from his article [28]. The experiments conducted in a U-type glass tube filled with water and the lower part was filled with insoluble particles, such as sandstone, which created a porous barrier.…”

Section: Introductionmentioning

confidence: 99%

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Electroosmotic flow: From microfluidics to nanofluidics

et al. 2021

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Electroosmotic flow (EOF), a consequence of an imposed electric field onto an electrolyte solution in the tangential direction of a charged surface, has emerged as an important phenomenon in electrokinetic transport at the micro/nanoscale. Because of their ability to efficiently pump liquids in miniaturized systems without incorporating any mechanical parts, electroosmotic methods for fluid pumping have been adopted in versatile applications—from biotechnology to environmental science. To understand the electrokinetic pumping mechanism, it is crucial to identify the role of an ionically polarized layer, the so‐called electrical double layer (EDL), which forms in the vicinity of a charged solid–liquid interface, as well as the characteristic length scale of the conducting media. Therefore, in this tutorial review, we summarize the development of electrical double layer models from a historical point of view to elucidate the interplay and configuration of water molecules and ions in the vicinity of a solid–liquid interface. Moreover, we discuss the physicochemical phenomena owing to the interaction of electrical double layer when the characteristic length of the conducting media is decreased from the microscale to the nanoscale. Finally, we highlight the pioneering studies and the most recent works on electro osmotic flow devoted to both theoretical and experimental aspects.

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Section: History and Backgroundmentioning

confidence: 59%

Section: History and Backgroundmentioning

confidence: 99%

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Electroosmotic flow: From microfluidics to nanofluidics

et al. 2021

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“…Water molecules diffuse through the solute from the solvent layer. 142 Bruhn et al demonstrated the development of devices that are capable of pressure generation based on the osmosis principle, which could be made from available low-cost materials. 143 Some MFD and LOC devices using osmosis as a passive approach for their operation are shown in Fig.…”

Section: Osmosismentioning

confidence: 99%

Advances in passively driven microfluidics and lab-on-chip devices: a comprehensive literature review and patent analysis

et al. 2020

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“…Though this electrokinetic phenomenon was first observed by French chemist Nicolas Gautherot back in the early nineteenth century, Herbert Pohl first coined the term “dielectrophoresis” in 1951 and demonstrated and explained characteristics of DEP in particle trapping [17–19]. Over the last decade, a wide variety of DEP‐based microfluidic devices have been developed for the separation of synthetic particles, for example, polystyrene beads, and bioparticles, for example, cell, bacteria, and proteins.…”

Section: Introductionmentioning

confidence: 99%

Quantitative analysis of the three‐dimensional trap stiffness of a dielectrophoretic corral trap

et al. 2021

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Dielectrophoresis is a robust approach for the manipulation and separation of (bio)particles using microfluidic platforms. We developed a dielectrophoretic corral trap in a microfluidic device that utilizes negative dielectrophoresis to capture single spherical polystyrene particles. Circular‐shaped micron‐size traps were employed inside the device and the three‐dimensional trap stiffness (restoring trapping force from equilibrium trapping location) was analyzed using 4.42 μm particles and 1 MHz of an alternating electric field from 6 VP‐P to 10 VP‐P. The trap stiffness increased exponentially in the x‐ and y‐direction, and linearly in the z‐direction. Image analysis of the trapped particle movements revealed that the trap stiffness is increased 608.4, 539.3, and 79.7% by increasing the voltage from 6 VP‐P to 10 VP‐P in the x‐, y‐, and z‐direction, respectively. The trap stiffness calculated from a finite element simulation of the device confirmed the experimental results. This analysis provides important insights to predict the trapping location, strength of the trapping, and optimum geometry for single particle trapping and its applications such as single‐molecule analysis and drug discovery.

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The Discovery of Electrokinetic Phenomena: Setting the Record Straight

Cited by 24 publications

References 30 publications

Electroosmotic flow: From microfluidics to nanofluidics

Electroosmotic flow: From microfluidics to nanofluidics

Advances in passively driven microfluidics and lab-on-chip devices: a comprehensive literature review and patent analysis

Quantitative analysis of the three‐dimensional trap stiffness of a dielectrophoretic corral trap

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