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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Bernassau, Anne L.
Heriot-Watt University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2020Analysis of throwing power for megasonic assisted electrodeposition of copper inside THVscitations
- 2012Acoustic tweezing at the nodes or antinodes of a heptagonal multi piezoelectric transducer cellcitations
- 2012Microfabrication of electrode patterns for high-frequency ultrasound transducer arrayscitations
- 2011Characterization of an epoxy filler for piezocomposites compatible with microfabrication processescitations
- 2009Concepts and issues in piezo-on-3D silicon structurescitations
- 2008Comparison of wax and wax-free mounting of irregular piezocomposite materials for thinning for high-frequency medical devices
- 2008Characterisation of an epoxy filler for piezocomposite material compatible with microfabrication processescitations
- 2007Surface preparation of 1-3 piezocomposite material for microfabrication of high frequency transducer arrayscitations
Places of action
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document
Acoustic tweezing at the nodes or antinodes of a heptagonal multi piezoelectric transducer cell
Abstract
<p>We present a novel device for acoustically manipulating or sonotweezing micron-scale elements. Such techniques, that allow the micro-manipulation of cells, particles or droplets by non-invasive means, are desired to facilitate biophysical or biological applications such as microarrays and tissue engineering. Non-invasive techniques exploiting the acoustic radiation force have been demonstrated for trapping, separating and moving particles. Most results to date describe acoustic trapping using geometrically fixed standing wave patterns.</p><p>However, the concerted action of multiple transducers can be used to generate electronically controlled standing wave patterns. This paper investigates 2-D particle micro-manipulation in a closed system using two or three transducers. In such systems, wave reflections can be detrimental to performance hence the geometry of the device has a strong impact on the quality of the particle trapping and this is discussed. We will also demonstrate that acoustic trapping can occur at the nodes or antinodes depending on the properties of the particle suspended in the medium.</p>