Acoustic manipulation of microparticles using a two-dimensional phononic crystal plate
نویسندگان
چکیده
Acoustic waves can manipulate particles without contact or damage, and has received increasing attention due to their potential applications in various fields, such as cell sorting, organoid construction, material assembly. In general, high-throughput manipulation of microparticles relies on a large number active transducers phase-shifting circuits create standing wave patterns, thus significantly inducing system complexity. Recently, we realized the parallel by using an acoustic field modulated one-dimensional phononic crystal plate. The concept is based fact that plate resonantly excite zero-order asymmetric (<i>A</i><sub>0</sub>) Lamb wave, highly localized periodic radiation force particles. this paper, further show two-dimensional (TDPCP), massive be achieved only with single transducer. <i>A</i><sub>0</sub> excited TDPCP, forming field, then suffer negative vertical stable zero horizontal force, trapping surface Combining PZT source TDPCP consisting brass patterned periodical stubs, observe capture arrangement glass microspheres, achieving TDPCP. This represents significant advancement developing high-throughput, rapid, flexible devices for manipulation.
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ژورنال
عنوان ژورنال: Chinese Physics
سال: 2023
ISSN: ['1000-3290']
DOI: https://doi.org/10.7498/aps.72.20230099