Micro/nano acoustofluidics: materials, phenomena, design, devices, and applications

Area of Science:

• Microfluidics
• Acoustics
• Materials Science

Background:

• Lab-on-a-chip devices face challenges in fluid and particle manipulation.
• Acoustic actuation presents a promising solution for microfluidic control.

Purpose of the Study:

• To provide a comprehensive review of acoustofluidics.
• To detail recent technological advances and scientific discussions in the field.
• To highlight the potential of acoustic actuation in microfluidics.

Main Methods:

• Review of piezoelectricity, piezoelectric materials, and transducers.
• Examination of acoustofluidic principles.
• Analysis of recent achievements in acoustic wave-driven fluid and particle manipulation.
• Discussion of micro/nano acoustofluidic phenomena.

Main Results:

• Acoustic actuation enables precise manipulation of fluids and particles in sessile drops and closed channels.
• Key phenomena like atomization, translation, mixing, and droplet formation are achieved.
• Recent advancements extend acoustofluidics to the nanoscale.

Conclusions:

• Acoustic actuation is poised to revolutionize lab-on-a-chip technology.
• The technology has broad applications in chemistry, biology, medicine, energy, and manufacturing.
• Further development promises novel, unimagined applications.