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

Effects of contact angle hysteresis on drop manipulation using surface acoustic waves

2020 ◽  
Vol 34 (1-2) ◽  
pp. 145-162 ◽  
Author(s):  
Mahdi Sheikholeslam Noori ◽  
Mohammad Taeibi Rahni ◽  
Arash Shams Taleghani
Keyword(s):  
Contact Angle ◽  
Acoustic Waves ◽  
Contact Angle Hysteresis ◽  
Surface Acoustic Waves

Sculpting and Aerosolizing Pinned Liquid Films With Localized Acoustic Pressures of Surface Acoustic Waves

2012 ◽  
Author(s):  
Daniel Taller ◽  
Hsueh-Chia Chang ◽  
David B. Go
Keyword(s):  
Contact Angle ◽  
Numerical Modeling ◽  
Contact Line ◽  
Acoustic Waves ◽  
Acoustic Pressure ◽  
Surface Acoustic Waves ◽  
Liquid Films ◽  
Solid Substrate ◽  
Planar Surface ◽  
Bulk Film

Due to viscous decay, a planar surface acoustic wave (SAW) diffracting from a solid substrate into a liquid film produces a time-averaged, exponentially decaying acoustic pressure in the film. We show that if the film is pinned against a bounding wall, the localized acoustic pressure generates a sequence of surface drops at the contact line, whose dimensions decay in the same exponential manner as the localized acoustic pressure. The undulating interfacial profile near the contact line also inherits this exponential decay, such that the averaged contact angle is exponentially small. The bulk film topology and the aerosolization mechanism are hence insensitive to the wettability of the surface but are controlled only by the localized acoustic pressure and the decaying undulations it produces at the contact line. The size distribution of surface drops is collapsed under the exponential scaling that depends only on the SAW decay rate and amplitude. Numerical modeling based on the Young-Laplace equation is used to model the liquid profile and to predict two aerosolization regimes.

Manipulation of cancer cells in a sessile droplet via travelling surface acoustic waves

Lab on a Chip ◽  
2021 ◽  
Author(s):  
Hyeono Nam ◽  
Hyung Jin Sung ◽  
Jinsoo Park ◽  
Jessie S. Jeon
Keyword(s):  
Cancer Cells ◽  
Drug Screening ◽  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Tumor Spheroid ◽  
Sessile Droplet ◽  
Screening Platform

TSAWs quickly form a tumor spheroid for a drug screening platform.

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

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

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.

Acoustofluidic particle manipulation inside a sessile droplet: four distinct regimes of particle concentration

Lab on a Chip ◽  
2016 ◽  
Vol 16 (4) ◽  
pp. 660-667 ◽  
Author(s):  
Ghulam Destgeer ◽  
Hyunjun Cho ◽  
Byung Hang Ha ◽  
Jin Ho Jung ◽  
Jinsoo Park ◽  
...  
Keyword(s):  
Acoustic Waves ◽  
Particle Concentration ◽  
Surface Acoustic Waves ◽  
Particle Manipulation ◽  
Sessile Droplet ◽  
Polystyrene Microparticles

We have investigated the motion of polystyrene microparticles inside a sessile droplet actuated by surface acoustic waves (SAWs). Four distinct regimes (R1–R4) of particle concentration are identified based on the particle diameters and the SAW frequencies.

Sign in / Sign up

Export Citation Format

Share Document