Particle assembly with synchronized acoustic tweezers

Gong, Zhixiong; Baudoin, Michaël

Document type :

Autre communication scientifique (congrès sans actes - poster - séminaire...)

DOI :

10.1103/PhysRevApplied.12.024045

Permalink :

http://hdl.handle.net/20.500.12210/43989

Title :

Particle assembly with synchronized acoustic tweezers

Author(s) :

Gong, Zhixiong [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Baudoin, Michaël [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]

Publication date :

2019-08

HAL domain(s) :

Sciences de l'ingénieur [physics]

English abstract : [en]

The contactless selective manipulation of individual objects at the microscale is powerfully enabled by acoustical tweezers based on acoustical vortices [M. Baudoin et al., Sci. Adv. 5, eaav1967 (2019)]. Nevertheless, the ...
Show more >The contactless selective manipulation of individual objects at the microscale is powerfully enabled by acoustical tweezers based on acoustical vortices [M. Baudoin et al., Sci. Adv. 5, eaav1967 (2019)]. Nevertheless, the ability to assemble multiple objects with these tweezers has not been demonstrated yet and is critical for many applications, such as tissue engineering or microrobotics. To achieve this goal, it is necessary to overcome a major difficulty: the high-intensity ring which ensures the trapping of inner particles at the core of the vortex beam is repulsive for particles located outside the trap. This prevents the assembly of multiple objects. In this paper, we show (in the Rayleigh limit and in two dimensions) that this problem can be overcome by trapping the target objects at the core of two synchronized vortices. Indeed, in this case, the destructive interference between neighboring vortices enables us to create an attractive path between the captured objects. The present work may pioneer the precise assembly and patterning of particles with multitweezers.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL

Submission date :

2021-07-27T07:57:56Z

Files

http://arxiv.org/pdf/1904.05039
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