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Surface acoustic wa...
Surface acoustic wave induced particle manipulation in a PDMS channel : principle concepts for continuous flow applications
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- Johansson, Linda (author)
- KTH,Uppsala universitet,Mikrosystemteknik,Tillämpad fysik,Department of Engineering Sciences, Ångström Laboratory, Uppsala University, PO Box 534, SE-75121, Uppsala, Sweden
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- Enlund, Johannes (author)
- Uppsala universitet,Fasta tillståndets elektronik,Thin Films Group
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- Johansson, Stefan (author)
- Uppsala universitet,Mikrosystemteknik
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- Katardjiev, Ilia (author)
- Uppsala universitet,Fasta tillståndets elektronik,Thin Films Group
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- Yantchev, Ventsislav (author)
- Uppsala universitet,Fasta tillståndets elektronik,Thin Films Group
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(creator_code:org_t)
- 2011-11-11
- 2012
- English.
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In: Biomedical microdevices (Print). - : Springer Science and Business Media LLC. - 1387-2176 .- 1572-8781. ; 14:2, s. 279-289
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- A device for acoustic particle manipulation in the40 MHz range for continuous-flow operation in a 50 μm wide PDMS channel has been evaluated. Unidirectionalinterdigital transducers on a Y-cut Z-propagation lithiumniobate wafer were used to excite a surface acoustic wavethat generated an acoustic standing wave inside the microfluidicchannel. It was shown that particle alignment nodeswith different inter-node spacing could be obtained,depending on device design and driving frequency. Theobserved inter-node spacing differed from the standard halfwavelengthinter-node spacing generally employed in bulkacoustic transducer excited resonant systems. This effectand the related issue of acoustic node positions relative thechannel walls, which is fundamental for most continuousflow particle manipulation operations in channels, wasevaluated in measurements and simulations. Specificapplications of particle separation and alignment wherethese systems can offer benefits relative state-of the artdesigns were identified.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- Paricle Manipulatiom
- Surface Acoustic Waves
- Microwaves
- TECHNOLOGY
- TEKNIKVETENSKAP
- Electronics
- Elektronik
- Teknisk fysik med inriktning mot mikrosystemteknik
- Engineering Science with specialization in Microsystems Technology
- Engineering Science with specialization in Electronics
- Teknisk fysik med inriktning mot elektronik
Publication and Content Type
- ref (subject category)
- art (subject category)
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