Cargando…

Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field

This study aimed to improve and investigate the oscillation dynamics and levitation stability of acoustically levitated water droplets. Contactless sample manipulation technology in mid-air has attracted significant attention in the fields of biochemistry and pharmaceutical science. Although one pro...

Descripción completa

Detalles Bibliográficos
Autores principales: Hasegawa, Koji, Murata, Manami
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9500997/
https://www.ncbi.nlm.nih.gov/pubmed/36143996
http://dx.doi.org/10.3390/mi13091373
_version_ 1784795362070888448
author Hasegawa, Koji
Murata, Manami
author_facet Hasegawa, Koji
Murata, Manami
author_sort Hasegawa, Koji
collection PubMed
description This study aimed to improve and investigate the oscillation dynamics and levitation stability of acoustically levitated water droplets. Contactless sample manipulation technology in mid-air has attracted significant attention in the fields of biochemistry and pharmaceutical science. Although one promising method is acoustic levitation, most studies have focused on a single sample. Therefore, it is important to determine the stability of multiple samples during acoustic levitation. Here, we aim to understand the effect of multiple-sample levitation on levitation stability in acoustic fields. We visualized the oscillatory motion of multiple levitated droplets using a high-speed video camera. To characterize the dynamics of multiple levitating droplets, the oscillation frequency and restoring force coefficients of the levitated samples, which were obtained from the experimental data, were analyzed to quantify the droplet–droplet interaction. The oscillation model of the spring-mass system was compared with the experimental results, and we found that the number of levitating droplets and their position played an important role in the levitation stability of the droplets. Our insights could help us understand the oscillatory behavior of levitated droplets to achieve more stable levitation.
format Online
Article
Text
id pubmed-9500997
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-95009972022-09-24 Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field Hasegawa, Koji Murata, Manami Micromachines (Basel) Article This study aimed to improve and investigate the oscillation dynamics and levitation stability of acoustically levitated water droplets. Contactless sample manipulation technology in mid-air has attracted significant attention in the fields of biochemistry and pharmaceutical science. Although one promising method is acoustic levitation, most studies have focused on a single sample. Therefore, it is important to determine the stability of multiple samples during acoustic levitation. Here, we aim to understand the effect of multiple-sample levitation on levitation stability in acoustic fields. We visualized the oscillatory motion of multiple levitated droplets using a high-speed video camera. To characterize the dynamics of multiple levitating droplets, the oscillation frequency and restoring force coefficients of the levitated samples, which were obtained from the experimental data, were analyzed to quantify the droplet–droplet interaction. The oscillation model of the spring-mass system was compared with the experimental results, and we found that the number of levitating droplets and their position played an important role in the levitation stability of the droplets. Our insights could help us understand the oscillatory behavior of levitated droplets to achieve more stable levitation. MDPI 2022-08-23 /pmc/articles/PMC9500997/ /pubmed/36143996 http://dx.doi.org/10.3390/mi13091373 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hasegawa, Koji
Murata, Manami
Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field
title Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field
title_full Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field
title_fullStr Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field
title_full_unstemmed Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field
title_short Oscillation Dynamics of Multiple Water Droplets Levitated in an Acoustic Field
title_sort oscillation dynamics of multiple water droplets levitated in an acoustic field
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9500997/
https://www.ncbi.nlm.nih.gov/pubmed/36143996
http://dx.doi.org/10.3390/mi13091373
work_keys_str_mv AT hasegawakoji oscillationdynamicsofmultiplewaterdropletslevitatedinanacousticfield
AT muratamanami oscillationdynamicsofmultiplewaterdropletslevitatedinanacousticfield