Active manipulation of inhomogeneous miscible fluid interfaces using acoustical tweezers

Almohamad, Samir; Cleve, Sarah; Ghosh, Udita; Chutani, Ravinder; Modler, Gustav; Bruus, Henrik; Baudoin, Michael

Document type :

Communication dans un congrès avec actes

DOI :

10.61782/fa.2023.0371

Title :

Active manipulation of inhomogeneous miscible fluid interfaces using acoustical tweezers

Author(s) :

Almohamad, Samir [Auteur]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
Cleve, Sarah [Auteur]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
Ghosh, Udita [Auteur]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
Chutani, Ravinder [Auteur]
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN [AIMAN-FILMS - IEMN]
Modler, Gustav [Auteur]
Danmarks Tekniske Universitet = Technical University of Denmark [DTU]
Bruus, Henrik [Auteur]
Danmarks Tekniske Universitet = Technical University of Denmark [DTU]
Baudoin, Michael [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]

Conference title :

10th Convention of the European Acoustics Association Forum Acusticum 2023

City :

Turin

Country :

Italie

Start date of the conference :

2023-09-11

Book title :

10th Convention of the European Acoustics Association

Publisher :

European Acoustics Association

HAL domain(s) :

Physique [physics]
Sciences de l'ingénieur [physics]

English abstract : [en]

The manipulation of immiscible fluids at microscales has paved the way for a wide range of applications and technologies. In particular, ultrasounds serve as versatile tools for manipulating dispersed immiscible droplets. ...
Show more >The manipulation of immiscible fluids at microscales has paved the way for a wide range of applications and technologies. In particular, ultrasounds serve as versatile tools for manipulating dispersed immiscible droplets. By shaping the acoustic field, droplets can be sorted, divided, merged, selected, and positioned. Typical approaches involve standing waves to attract and trap droplets at fixed pressure nodes/antinodes or traveling waves to displace droplets in the direction of the ultrasound wave propagation. Recent advancements have enabled precise manipulation of selected droplets using selective acoustic tweezers based on focused beams, or acoustical vortices. However, the ultrasound-based manipulation of miscible fluids has only recently been demonstrated theoretically by Karlsen, Augustsson, and Bruus [1]. In this case, the manipulation results from an acoustic force density appearing due to the inhomogeneity in density and sound speed between the two fluids. In this work, we experimentally demonstrate the application of acoustic tweezers to pattern, trap, and displace high-concentration misciblefluid islands (Ficoll-PM400) within a lower-concentration medium (water) using ultrasounds. This research establishes the basis for ultrasound-based drug and chemical manipulation, with diverse applications in biology and medecine.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

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