Acoustofluidics 20: applications in acoustic trapping

Area of Science:

• Acoustofluidics
• Biotechnology
• Microfluidics

Background:

• Acoustic trapping offers non-invasive, non-contact immobilization of cells and particles in microfluidic systems.
• This technique facilitates 3D cell cluster formation, enhances particle-based bioassays, and aids cell-particle interaction studies.

Purpose of the Study:

• To review applications of acoustic trapping in microfluidic systems, focusing on retaining particles against flow.
• To highlight the utility of acoustic trapping for sample enrichment and cell population fractionation.

Main Methods:

• Review of existing literature on acoustic trapping in microfluidic systems.
• Focus on systems where particles are retained against a fluid flow.

Main Results:

• Acoustic trapping is effective for immobilizing and manipulating micron-sized particles and cells.
• Applications include reducing 3D cell cluster formation time and enhancing bioassays.

Conclusions:

• Acoustic trapping is a versatile tool in microfluidics for cell and particle manipulation.
• Its applications are expanding into sample preparation for sensitive detection methods like MALDI-MS and PCR.