Electrolysis‐reducing electrodes for electrokinetic devices

@article{Erlandsson2011ElectrolysisreducingEF,
  title={Electrolysis‐reducing electrodes for electrokinetic devices},
  author={Per G. Erlandsson and Nathaniel D. Robinson},
  journal={ELECTROPHORESIS},
  year={2011},
  volume={32}
}
Direct current electrokinetic systems generally require Faradaic reactions to occur at a pair of electrodes to maintain an electric field in an electrolyte connecting them. The vast majority of such systems, e.g. electrophoretic separations (capillary electrophoresis) or electroosmotic pumps (EOPs), employ electrolysis of the solvent in these reactions. In many cases, the electrolytic products, such as H+ and OH− in the case of water, can negatively influence the chemical or biological species… 
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References

SHOWING 1-10 OF 36 REFERENCES
Basic principles of electrolyte chemistry for microfluidic electrokinetics. Part II: Coupling between ion mobility, electrolysis, and acid-base equilibria.
TLDR
The coupling between acid-base equilibrium chemistry and electrophoretic mobilities of electrolytes, at both infinite and finite dilution, is summarized and the effects of electrode reactions on microfluidic electrokinetic experiments are discussed.
A planar electroosmotic micropump
Electroosmotic (EO) micropumps use field-induced ion drag to drive liquids and achieve high pressures in a compact design with no moving parts. An analytical model applicable to planar,
Spatially controlled microfluidics using low-voltage electrokinetics
Most electrokinetic microfluidic devices currently require high voltages (>50 V) to generate sustained electric fields. However, two long-standing limitations remain, namely: (i) the resulting
Long-term stable electroosmotic pump with ion exchange membranes.
We present the design, fabrication and test of a novel inline frit-based electroosmotic (EO) pump with ion exchange membranes. The pump is more stable than previous types due to a new flow component
Electrokinetic transport of red blood cells in microcapillaries
TLDR
A short‐term solution to the pH gradient formation is presented that could help thwart development of pH gradients in micro‐devices at lower voltages.
Chemical and morphological changes on platinum microelectrode surfaces in AC and DC fields with biological buffer solutions.
TLDR
Platinum dissolution, platinum redeposition, chloride formation and oxide formation on platinum microelectrode surfaces were observed by scanning electron microscopy and energy dispersive spectroscopy and verified by cyclic voltammetry studies.
Potential Stability of All-Solid-State Ion-Selective Electrodes Using Conducting Polymers as Ion-to-Electron Transducers.
  • J. Bobacka
  • Materials Science
    Analytical chemistry
  • 1999
TLDR
Chronopotentiometry is found to be a convenient and fast experimental method to critically evaluate the potential stability of different types of ion-selective electrodes.
Manufacturing and application of a fully polymeric electrophoresis chip with integrated polyaniline electrodes.
TLDR
Highly efficient separations comparable to those achieved in similar microchips using platinum electrodes confirm the potential of polyaniline as a new material suitable for high voltage electrodes in Lab-on-a-chip devices.
...
1
2
3
4
...