How can the principles of boundary lubrication be applied to develop novel methods for reducing friction in microfluidic devices?
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The principles of boundary lubrication can be applied to develop innovative methods for reducing friction in microfluidic devices. One approach involves utilizing cylindrical liquid-in-liquid flow, which has shown significant drag reduction of 60-99% in sub-mm and mm-sized channels, independent of the transported liquid's viscosity compared to the confining one . Additionally, enhancing boundary slip through interfacial nanobubbles (INBs) has been explored. Molecular dynamics simulations revealed that INBs increase slip length on smooth substrates linearly with surface coverage and play a crucial role in determining slip length on rough substrates based on factors like protrusion angle, quantity, and fluidity of the INBs . These findings offer valuable insights for designing microfluidic systems with significantly reduced friction.
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| Papers (4) | Insight |
|---|---|
| Interfacial nanobubbles (INBs) enhance boundary slip, reducing friction in microfluidic devices by adjusting protrusion angle, coverage, quantity, and fluidity of INBs on smooth and rough substrates. | |
| Boundary slip with interfacial nanobubbles enhances slip length in microfluidic devices. Factors like INB protrusion angle, coverage, quantity, and fluidity influence friction reduction, offering insights for novel methods. | |
| Boundary lubrication principles are surpassed by a novel method in the paper, utilizing magnetic confinement of ferrofluid to achieve 60-99% drag reduction in microfluidic devices, independent of viscosity ratios. | |
| Enhancing boundary slip with interfacial nanobubbles can reduce friction in microfluidic devices by adjusting INB protrusion angle, coverage, quantity, and fluidity based on molecular dynamics simulations. |
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