Active Solid-State Nanopores: Self-Driven Flows/Chaos at the Liquid-Gas Nanofluidic Interface

Area of Science:

• Nanofluidics
• Fluid Dynamics
• Interface Phenomena

Background:

• Investigating fluid behavior at the nanoscale is crucial for developing advanced technologies.
• Understanding liquid-gas interfaces in confined spaces presents unique challenges.
• External forces are typically required to drive flow in micro/nanofluidic systems.

Purpose of the Study:

• To comprehensively study self-driven flow dynamics at the liquid-gas interface in nanofluidic pores without external forces.
• To analyze Rayleigh-Taylor instability phenomena in sub-100 nm pores.
• To introduce and explore the concept of an
• active solid-state nanopore
• with self-driven flow switching capabilities.

Main Methods:

• Theoretical modeling to derive a flow velocity equation.
• Computational simulations for validation and analysis of mass transfer efficiency.
• Experimental observation of nanoscale chaotic fluid motion.

Main Results:

• A validated flow velocity equation for self-driven nanofluidic systems.
• Demonstration of self-driven flow switching in an
• active solid-state nanopore
• without mechanical parts.
• Observation of nanoscale chaos in fluid dynamics, distinct from macroscopic turbulence.

Conclusions:

• Self-driven nanofluidics offers a new paradigm for fluid control at the liquid-gas interface.
• The
• active solid-state nanopore
• concept has potential for applications in sensing, healthcare, and energy.
• This research bridges the understanding of classical and quantum fluid dynamics in confined environments.