Slowness curve surface acoustic wave transducers for optimized acoustic streaming.

ABSTRACT: Surface acoustic waves can induce force gradients on the length scales of micro- and nanoparticles, allowing precise manipulation for particle capture, alignment and sorting activities. These waves typically occupy a spatial region much larger than a single particle, resulting in batch manipulation. Circular arc transducers can focus a SAW into a narrow beam on the order of the particle diameter for highly localised, single-particle manipulation by exciting wavelets which propagate to a common focal point. The anisotropic nature of SAW substrates, however, elongates and shifts the focal region. Acousto-microfluidic applications are highly dependent on the morphology of the underlying substrate displacement and, thus, become dependent on the microchannel position relative to the circular ar

SUBMITTER: O'Rorke R 

PROVIDER: S-EPMC9050610 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature