Acoustic Radiation Force on Small Spheres Due to Transient Acoustic Fields

Wang, Qing; Riaud, Antoine; Zhou, Jia; Gong, Zhixiong; Baudoin, Michaël

doi:10.1103/physrevapplied.15.044034

Cited by 28 publications

(10 citation statements)

References 41 publications

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“…[ 20–26 ] Owing to the tunable nature of acoustic waves and the wide range of operating frequencies used (kilohertz to gigahertz), acoustophoretic technologies can perform particle manipulation across length scales from sub‐micron to millimeters. [ 27–29 ] Spatial selectivity has further been achieved via wavefield design approaches including acoustic holography, [ 30 ] focused transducers, [ 31,32 ] and pulsed actuation strategies, [ 33,34 ] although the scale of this selectivity is generally limited by the acoustic wavelengths utilized.…”

Section: Introductionmentioning

confidence: 99%

3D Acoustofluidics via Sub‐Wavelength Micro‐Resonators

Harley

Kolesnik

et al. 2022

Adv Funct Materials

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Precise acoustic micromanipulation is emerging as an important tool in biomedical research, where acoustic forces have the advantage of being contact‐free, label‐free, and biocompatible. Conventional acoustofluidic approaches, however, produce device‐scale effects that limit the ability to locally target acoustic energies at the microscale. In this study, we demonstrate an approach to generate designed and highly local acoustic fields using 3D resonant mass‐spring microstructures, achieving local acoustic field gradients on the order of microns, orders of magnitude smaller than the fluid wavelength. In doing so, rapid and spatially defined controllable micromanipulation, including particle capture, transport, and patterning using arbitrarily arranged micro‐resonator arrays is demonstrated. This sub‐wavelength, 3D acoustofluidic approach results in highly localized and defined micromanipulation, with potential applications across sample preparation, cell analysis, and diagnostics.

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Section: Introductionmentioning

confidence: 99%

3D Acoustofluidics via Sub‐Wavelength Micro‐Resonators

Harley

Kolesnik

et al. 2022

Adv Funct Materials

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“…The cases of non-spherical particles such as disks and spheroids were treated by Keller (1957) and Silva & Drinkwater (2018), respectively, while the case of transient acoustic fields was recently addressed by Wang et al. (2021). We can also note that some expressions for the secondary radiation force (inter-particle force) have been derived by Silva & Bruus (2011).…”

Section: Introductionmentioning

confidence: 99%

Self-radiation force on a moving monopolar source

2022

Self Cite

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The radiation force exerted on an object by an acoustic wave is a widely studied phenomenon since the early work of Rayleigh, Langevin and Brillouin, and has led in the last decade to tremendous developments for acoustic micromanipulation. Despite extensive work on this phenomenon, the expressions of the acoustic radiation force applied on a particle have so far been derived only for a steady particle, hence neglecting the effect of its displacement on the radiated wave. In this work, we study the acoustic radiation force exerted on a monopolar source translating at a constant velocity that is small compared to the sound speed. We demonstrate that the asymmetry of the emitted field resulting from the Doppler effect induces a radiation force on the source opposite to its motion.

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“…This expression was also extended by Doinikov (1997a,b,c) to consider the effect of the viscous and thermal boundary layers in some asymptotic limits (of the boundary layer size compared to the particle size) and in the general case by Settnes & Bruus (2012) and Karlsen & Bruus (2015). The case of nonspherical particles such as disks and spheroids was treated by Keller (1957) and Silva & Drinkwater (2018) respectively, while the case of transient acoustic fields was recently addressed by Wang et al (2021). We can also note that some expression for the secondary radiation force (inter-particle force) have been derived by Silva & Bruus (2011).…”

Section: Introductionmentioning

confidence: 99%

Self radiation force on a moving monopolar source

Roux¹,

Martishang²,

Baudoin³

2022

Preprint

Self Cite

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The radiation force exerted on an object by an acoustic wave is a widely studied phenomenon since the early work of Rayleigh, Langevin and Brillouin and has led in the last decade to tremendous developments for acoustic micromanipulation. Despite extensive work on this phenomenon, the expressions of the acoustic radiation force applied on a particle have so far been derived only for a steady particle, hence neglecting the effect of its displacement on the radiated wave. In this work we study the acoustic radiation force exerted on a monopolar source translating at a constant velocity small compared to the sound speed. We demonstrate that the asymmetry of the emitted field resulting from Doppler effect induces a radiation force on the source opposite to its motion.

show abstract

Acoustic Radiation Force on Small Spheres Due to Transient Acoustic Fields

Cited by 28 publications

References 41 publications

3D Acoustofluidics via Sub‐Wavelength Micro‐Resonators

3D Acoustofluidics via Sub‐Wavelength Micro‐Resonators

Self-radiation force on a moving monopolar source

Self radiation force on a moving monopolar source

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