Microfluidic acoustic sawtooth metasurfaces for patterning and separation using traveling surface acoustic waves.
Lab Chip
; 22(1): 90-99, 2021 12 21.
Article
em En
| MEDLINE
| ID: mdl-34860222
ABSTRACT
We demonstrate a sawtooth-based metasurface approach for flexibly orienting acoustic fields in a microfluidic device driven by surface acoustic waves (SAW), where sub-wavelength channel features can be used to arbitrarily steer acoustic fringes in a microchannel. Compared to other acoustofluidic methods, only a single travelling wave is used, the fluidic pressure field is decoupled from the fluid domain's shape, and steerable pressure fields are a function of a simply constructed polydimethylsiloxane (PDMS) metasurface shape. Our results are relevant to microfluidic applications including the patterning, concentration, focusing, and separation of microparticles and cells.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Som
/
Microfluídica
Idioma:
En
Revista:
Lab Chip
Assunto da revista:
BIOTECNOLOGIA
/
QUIMICA
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Austrália