Characteristics of Particle Separation in Water Using Lab-Scale Acoustic Standing Wave

Particle Enrichment in Longitudinal Standing Bulk Acoustic Wave Microfluidics

Measurement of the acoustic velocity characteristics in a standing-wave tube using out of phase PIV

The velocity fields of acoustic standing wave in a rectangular channel are investigated. A new approach is used to measure the velocity fields using PIV. In this approach, the velocity fields are sampled at different phases in a given experimental run without synchronizing the PIV system with the excitation signal. The results show that the RMS velocities measured from this approach are in exce...

Cell separation using tilted-angle standing surface acoustic waves.

Separation of cells is a critical process for studying cell properties, disease diagnostics, and therapeutics. Cell sorting by acoustic waves offers a means to separate cells on the basis of their size and physical properties in a label-free, contactless, and biocompatible manner. The separation sensitivity and efficiency of currently available acoustic-based approaches, however, are limited, t...

Investigation into the Effect of Acoustic Radiation Force and Acoustic Streaming on Particle Patterning in Acoustic Standing Wave Fields

Acoustic standing waves have been widely used in trapping, patterning, and manipulating particles, whereas one barrier remains: the lack of understanding of force conditions on particles which mainly include acoustic radiation force (ARF) and acoustic streaming (AS). In this paper, force conditions on micrometer size polystyrene microspheres in acoustic standing wave fields were investigated. T...

Time-resolved Particle Image Velocimetry of the flow in an acoustic standing wave tube

The flow field in an acoustic standing wave tube was measured using time-resolved particle image velocimetry (PIV). Verifications were made through comparisons between measured and predicted acoustic particle velocities in the spatial domain and the time domain. The accuracy of the time-resolved PIV system was satisfactory, at least for the periodic flow velocity component. The steady streaming...