期刊
LAB ON A CHIP
卷 12, 期 8, 页码 1417-1426出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2lc21257a
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- EPSRC [EP/G012075/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G012075/1] Funding Source: researchfish
This article introduces the design, construction and applications of planar resonant devices for particle and cell manipulation. These systems rely on the pistonic action of a piezoelectric layer to generate a one dimensional axial variation in acoustic pressure through a system of acoustically tuned layers. The resulting acoustic standing wave is dominated by planar variations in pressure causing particles to migrate to planar pressure nodes (or antinodes depending on particle and fluid properties). The consequences of lateral variations in the fields are discussed, and rules for designing resonators with high energy density within the appropriate layer for a given drive voltage presented.
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