Three-Dimensional Trapping and Dynamic Axial Manipulation with Frequency-Tuned Spiraling Acoustical Tweezers: A Theoretical Study
Three-Dimensional Trapping and Dynamic Axial Manipulation with Frequency-Tuned Spiraling Acoustical Tweezers: A Theoretical Study
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DOI：
10.1103/physrevapplied.16.024034
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发表时间：
2021-08-20
影响因子：
4.6
通讯作者：
Baudoin, Michael
中科院分区：
文献类型：
--
作者：
Gong, Zhixiong;Baudoin, Michael
基于阿基米德-费马螺旋叉指换能器 (SIDT) 的全息声学镊子是选择性操纵微粒的多功能工具 [Baudoin 等人，Sci.副词。 5，eaav1967 (2019)] 和细胞 [Baudoin 等人，Nat。 Commun., 11, 4244 (2020)] 在标准微流体环境中。这些二元活性全息图会产生一些聚焦螺旋波，能够在涡核处捕获粒子。然而，到目前为止，所有使用 SIDT 进行的研究都仅限于二维 (2D) 操作。在这里，我们通过理论研究表明，（i）可以使用具有足够大孔径的螺旋镊子获得微粒和细胞的 3D 辐射陷阱，并且（ii）只需调整驱动频率即可轴向移动颗粒，而无需传感器的任何运动。这项工作为使用单束声学镊子操纵 3D 细胞和微粒开辟了前景。
Holographic acoustical tweezers based on Archimedes-Fermat spiraling interdigitated transducers (SIDTs) are a versatile tool for the selective manipulation of microparticles [Baudoin et al., Sci. Adv. 5, eaav1967 (2019)] and cells [Baudoin et al., Nat. Commun., 11, 4244 (2020)] in a standard microfluidic environment. These binary active holograms produce some focused helical wave, with the ability to trap particles at the vortex core. Yet, all the studies conducted with SIDTs have so far been restricted to two-dimensional (2D) manipulation only. Here we show through a theoretical study that (i) a 3D radiation trap for microparticles and cells can be obtained with spiraling tweezers with sufficiently large aperture and that (ii) the particles can be displaced axially by simply tuning the driving frequency, without any motion of the transducer. This work opens perspectives for 3D cells and microparticles manipulation with single-beam acoustical tweezers.