Batch process particle separation using surface acoustic waves (SAW): integration of travelling and standing SAW

RSC Advances ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 5856-5864 ◽  
Author(s):  
Citsabehsan Devendran ◽  
Nipuna R. Gunasekara ◽  
David J. Collins ◽  
Adrian Neild
Keyword(s):  
Fluid Flow ◽  
Standing Wave ◽  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Particle Separation ◽  
Batch Process ◽  
Acoustic Fields ◽  
Particle Sorting ◽  
System P

Acoustic fields are described incorporating travelling and standing wave components to perform size-deterministic particle sorting. This is achieved without the need for fluid flow allowing application to very small volumes in a batch-wise system.

scholarly journals Acoustic fields and microfluidic patterning around embedded micro-structures subject to surface acoustic waves

Soft Matter ◽  
2019 ◽  
Vol 15 (43) ◽  
pp. 8691-8705 ◽  
Author(s):  
David J. Collins ◽  
Richard O’Rorke ◽  
Adrian Neild ◽  
Jongyoon Han ◽  
Ye Ai
Keyword(s):  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Analytical Models ◽  
Acoustic Fields ◽  
Micro Structures ◽  
Microfluidic Patterning

Interactions between substrate waves and microchannel walls generate spatially localized periodic acoustic forces for microscale patterning activities. We develop analytical models that can be readily applied to predict this periodicity.

Particle Separation inside a Sessile Droplet with Variable Contact Angle Using Surface Acoustic Waves

2016 ◽  
Vol 89 (1) ◽  
pp. 736-744 ◽  
Author(s):  
Ghulam Destgeer ◽  
Jin Ho Jung ◽  
Jinsoo Park ◽  
Husnain Ahmed ◽  
Hyung Jin Sung
Keyword(s):  
Contact Angle ◽  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Particle Separation ◽  
Sessile Droplet

Rapid fluid flow and mixing induced in microchannels using surface acoustic waves

2009 ◽  
Vol 87 (4) ◽  
pp. 47003 ◽  
Author(s):  
M. K. Tan ◽  
L. Y. Yeo ◽  
J. R. Friend
Keyword(s):  
Fluid Flow ◽  
Acoustic Waves ◽  
Surface Acoustic Waves

scholarly journals Unsteady particle motion in an acoustic standing wave field

2019 ◽  
Author(s):  
S. Wanga ◽  
J. S. Allen ◽  
A. M. Ardekani
Keyword(s):  
Wave Field ◽  
Standing Wave ◽  
Particle Motion ◽  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Particle Interaction ◽  
Inertial Force ◽  
Radiation Force ◽  
Acoustic Standing Wave ◽  
Standing Wave Field

The acoustic-based separation has attracted considerable attention in biomedical research, such as sorting of cells and particles. Current design principles used for acoustic systems are based on the steady Stokes theory, equating the Stokes drag with the primary radiation force. However, this approach is not valid for large cells/particles or in the presence of particle–particle interaction. In this work,we analytically examine unsteady inertial affects and particle–particle hydrodynamic interaction on the particle motion in a viscous fluid in the presence of an acoustic standing wave field. Comparing our results to the steady Stokes theory, we find that the unsteady inertial force decreases the particle’s velocity, while particle–particle interaction enhances it. For a particular acoustic-based separation approach ‘tilted-angle standing surface acoustic waves (taSSAW)’, we find that both effects of unsteady inertial force and particle–particle interaction are evident and should be considered for O(10μm) particles or larger. Our study improves the current predictions of particle trajectory in acoustic-based separation devices.

Continuous particle separation in a microfluidic channel via standing surface acoustic waves (SSAW)

Lab on a Chip ◽  
2009 ◽  
Vol 9 (23) ◽  
pp. 3354 ◽  
Author(s):  
Jinjie Shi ◽  
Hua Huang ◽  
Zak Stratton ◽  
Yiping Huang ◽  
Tony Jun Huang
Keyword(s):  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Microfluidic Channel ◽  
Particle Separation ◽  
Continuous Particle

Highly focused high-frequency travelling surface acoustic waves (SAW) for rapid single-particle sorting

Lab on a Chip ◽  
2016 ◽  
Vol 16 (3) ◽  
pp. 471-479 ◽  
Author(s):  
David J. Collins ◽  
Adrian Neild ◽  
Ye Ai
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Single Particle ◽  
Acoustic Waves ◽  
High Frequency ◽  
Surface Acoustic Waves ◽  
Particle Sorting ◽  
Single Particle Level ◽  
Particle Level

We demonstrate the use of a highly focused surface acoustic wave (SAW) with an effective region only ~25 μm wide for precise manipulation on the single-particle level.

scholarly journals Particle separation by phase modulated surface acoustic waves

2017 ◽  
Vol 11 (5) ◽  
pp. 054115 ◽  
Author(s):  
Gergely Simon ◽  
Marco A. B. Andrade ◽  
Julien Reboud ◽  
Jose Marques-Hueso ◽  
Marc P. Y. Desmulliez ◽  
...  
Keyword(s):  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Particle Separation
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