Acoustic tweezers: patterning cells and microparticles using standing surface acoustic waves (SSAW)

Lab on a Chip ◽  
2009 ◽  
Vol 9 (20) ◽  
pp. 2890 ◽  
Author(s):  
Jinjie Shi ◽  
Daniel Ahmed ◽  
Xiaole Mao ◽  
Sz-Chin Steven Lin ◽  
Aitan Lawit ◽  
...  
Keyword(s):  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Acoustic Tweezers

scholarly journals Reusable acoustic tweezers for disposable devices

Lab on a Chip ◽  
2015 ◽  
Vol 15 (24) ◽  
pp. 4517-4523 ◽  
Author(s):  
Feng Guo ◽  
Yuliang Xie ◽  
Sixing Li ◽  
James Lata ◽  
Liqiang Ren ◽  
...  
Keyword(s):  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Acoustic Tweezers

Reusable acoustic tweezers used for disposable devices are demonstrated using locally transmitted standing surface acoustic waves.

scholarly journals Acoustic tweezers via sub–time-of-flight regime surface acoustic waves

2016 ◽  
Vol 2 (7) ◽  
pp. e1600089 ◽  
Author(s):  
David J. Collins ◽  
Citsabehsan Devendran ◽  
Zhichao Ma ◽  
Jia Wei Ng ◽  
Adrian Neild ◽  
...  
Keyword(s):  
Optical Tweezers ◽  
Acoustic Waves ◽  
Optical Waveguides ◽  
Surface Acoustic Waves ◽  
Time Of Flight ◽  
Microfluidic Channel ◽  
Two Dimensions ◽  
Acoustic Standing Wave ◽  
Spatial Dimensions ◽  
Acoustic Tweezers

Micrometer-scale acoustic waves are highly useful for refined optomechanical and acoustofluidic manipulation, where these fields are spatially localized along the transducer aperture but not along the acoustic propagation direction. In the case of acoustic tweezers, such a conventional acoustic standing wave results in particle and cell patterning across the entire width of a microfluidic channel, preventing selective trapping. We demonstrate the use of nanosecond-scale pulsed surface acoustic waves (SAWs) with a pulse period that is less than the time of flight between opposing transducers to generate localized time-averaged patterning regions while using conventional electrode structures. These nodal positions can be readily and arbitrarily positioned in two dimensions and within the patterning region itself through the imposition of pulse delays, frequency modulation, and phase shifts. This straightforward concept adds new spatial dimensions to which acoustic fields can be localized in SAW applications in a manner analogous to optical tweezers, including spatially selective acoustic tweezers and optical waveguides.

Acoustic tweezers: patterning, focusing, and separating cells and microparticles using standing surface acoustic waves (SSAW)

2011 ◽  
Author(s):  
Jinjie Shi ◽  
Xiaoyun Ding ◽  
Steven Sz-Chin Lin ◽  
Tony Jun Huang
Keyword(s):  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Acoustic Tweezers

Acoustic tweezers: Achieving quasi-dynamic micropartcile patterning using tunable surface acoustic waves

2011 ◽  
Author(s):  
Xiaoyun Ding ◽  
Jinjie Shi ◽  
Sz-Chin Steven Lin ◽  
Shahrzad Yazdi ◽  
Brian Kiraly ◽  
...  
Keyword(s):  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Acoustic Tweezers

scholarly journals Three-dimensional manipulation of single cells using surface acoustic waves

2016 ◽  
Vol 113 (6) ◽  
pp. 1522-1527 ◽  
Author(s):  
Feng Guo ◽  
Zhangming Mao ◽  
Yuchao Chen ◽  
Zhiwei Xie ◽  
James P. Lata ◽  
...  
Keyword(s):  
Acoustic Waves ◽  
Single Cells ◽  
Surface Acoustic Waves ◽  
Three Dimensional ◽  
Biological Cells ◽  
Acoustic Vibrations ◽  
Label Free ◽  
Acoustic Tweezers ◽  
Contact Free ◽  
Micrometer Scale

The ability of surface acoustic waves to trap and manipulate micrometer-scale particles and biological cells has led to many applications involving “acoustic tweezers” in biology, chemistry, engineering, and medicine. Here, we present 3D acoustic tweezers, which use surface acoustic waves to create 3D trapping nodes for the capture and manipulation of microparticles and cells along three mutually orthogonal axes. In this method, we use standing-wave phase shifts to move particles or cells in-plane, whereas the amplitude of acoustic vibrations is used to control particle motion along an orthogonal plane. We demonstrate, through controlled experiments guided by simulations, how acoustic vibrations result in micromanipulations in a microfluidic chamber by invoking physical principles that underlie the formation and regulation of complex, volumetric trapping nodes of particles and biological cells. We further show how 3D acoustic tweezers can be used to pick up, translate, and print single cells and cell assemblies to create 2D and 3D structures in a precise, noninvasive, label-free, and contact-free manner.

Characterization of RF Sputtered ZnO Piezoelectric Films Using Transmission Electron Microscope

1975 ◽  
Vol 33 ◽  
pp. 86-87
Author(s):  
Kemining W. Yeh ◽  
Richard S. Muller ◽  
Wei-Kuo Wu ◽  
Jack Washburn
Keyword(s):  
Integrated Circuit ◽  
Acoustic Waves ◽  
New Technology ◽  
Surface Acoustic Waves ◽  
Electromechanical Properties ◽  
Leading Role ◽  
Saw Devices ◽  
Transmission Electron ◽  
High Degree

Considerable and continuing interest has been shown in the thin film transducer fabrication for surface acoustic waves (SAW) in the past few years. Due to the high degree of miniaturization, compatibility with silicon integrated circuit technology, simplicity and ease of design, this new technology has played an important role in the design of new devices for communications and signal processing. Among the commonly used piezoelectric thin films, ZnO generally yields superior electromechanical properties and is expected to play a leading role in the development of SAW devices.

Attenuation of surface acoustic waves by quantum dots

1998 ◽  
Vol 77 (5) ◽  
pp. 1195-1202
Author(s):  
Andreas Knabchen Yehoshua, B. Levinson, Ora
Keyword(s):  
Quantum Dots ◽  
Acoustic Waves ◽  
Surface Acoustic Waves

A technique for exciting surface acoustic waves onto nonpiezoelectric materials

1982 ◽  
Vol 44 (4) ◽  
pp. 85-88 ◽  
Author(s):  
Masaru Hayama ◽  
Kohji Toda
Keyword(s):  
Acoustic Waves ◽  
Surface Acoustic Waves
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