Microscale Acoustofluidics

The manipulation of cells and microparticles within microfluidic systems using external forces is valuable for many microscale analytical and bioanalytical applications. Acoustofluidics is the ultrasound-based external forcing of microparticles with microfluidic systems. It has gained much interest because it allows for the simple label-free separation of microparticles based on their mechanical properties without affecting the microparticles themselves.

Governing equations in microfluidics; Regular perturbation theory for acoustic fields; Linear continuum mechanics; Linear piezoelectric transducers; Building microfluidic acoustic resonators; Experimental characterization of devices; Acoustic radiation force; Applications in acoustophoresis; Modelling and applications of planar resonant devices; Scaling-laws and time scales in acoustofluidics; Affinity acoustophoresis; Biocompatibility and cell viability in microfluidic acoustic resonators; Analysis of acoustic streaming by singular perturbation; Applications in acoustic streaming; Streaming with ultrasound waves interacting with solid particles; Acoustics streaming near liquid-gas interfaces: drops and bubbles; SAW devices; Microscopy for lab-on-a-chip devices; Particle manipulation in acoustic cavities; Applications in acoustic trapping; Enhanced immunoassays and particle sensors; Multiwavelength devices and scale dependent properties; Acoustic manipulation combined with other techniques