The University of Southampton
University of Southampton Institutional Repository

The in situ electrochemical detection of microbubble oscillations during motion through a channel

The in situ electrochemical detection of microbubble oscillations during motion through a channel
The in situ electrochemical detection of microbubble oscillations during motion through a channel
Bubble oscillation has many applications, from driving local fluid motion to cleaning. However, in order to exploit their action, a full understanding of this motion, particularly in confined spaces (such as crevices etc. which are important in ultrasonic decontamination) is important. To this end, here we show how a Coulter counter can be used to characterize microbubbles produced through the ultrasonication of electrolytes. These microbubbles are shown to exist in relatively high concentrations while bubble activity is driven by ultrasound. Detection of these microbubbles, and their oscillatory behaviour, is achieved via translocation through a cylindrical glass microchannel (GMC). The microbubbles oscillate within the 40 μm channel employed and this behaviour is observed to change over the translocation period. This is attributed to the acoustic environment present or changes to the physical conditions in the interior of the chamber compared to the exterior. High-speed imaging confirms the presence of microbubbles as they move or ‘skate’ across the surface of the structures present before translocating through the channel. The observations are useful as they show that microbubble oscillation occurs within small structures, is preceded by surface confined bubbles and could be enhanced through pressure driven flow through a structure.
1463-9076
24802-24807
Birkin, Peter R.
ba466560-f27c-418d-89fc-67ea4f81d0a7
Linfield, Steven
0c96c9cf-24f8-4729-b635-15deb2d26e9c
Denuault, Guy
5c76e69f-e04e-4be5-83c5-e729887ffd4e
Birkin, Peter R.
ba466560-f27c-418d-89fc-67ea4f81d0a7
Linfield, Steven
0c96c9cf-24f8-4729-b635-15deb2d26e9c
Denuault, Guy
5c76e69f-e04e-4be5-83c5-e729887ffd4e

Birkin, Peter R., Linfield, Steven and Denuault, Guy (2019) The in situ electrochemical detection of microbubble oscillations during motion through a channel. Physical Chemistry Chemical Physics, 21 (44), 24802-24807. (doi:10.1039/C9CP05103A).

Record type: Article

Abstract

Bubble oscillation has many applications, from driving local fluid motion to cleaning. However, in order to exploit their action, a full understanding of this motion, particularly in confined spaces (such as crevices etc. which are important in ultrasonic decontamination) is important. To this end, here we show how a Coulter counter can be used to characterize microbubbles produced through the ultrasonication of electrolytes. These microbubbles are shown to exist in relatively high concentrations while bubble activity is driven by ultrasound. Detection of these microbubbles, and their oscillatory behaviour, is achieved via translocation through a cylindrical glass microchannel (GMC). The microbubbles oscillate within the 40 μm channel employed and this behaviour is observed to change over the translocation period. This is attributed to the acoustic environment present or changes to the physical conditions in the interior of the chamber compared to the exterior. High-speed imaging confirms the presence of microbubbles as they move or ‘skate’ across the surface of the structures present before translocating through the channel. The observations are useful as they show that microbubble oscillation occurs within small structures, is preceded by surface confined bubbles and could be enhanced through pressure driven flow through a structure.

Text
Insitu Microbubble PRB proof ref corrections - Accepted Manuscript
Download (463kB)

More information

Accepted/In Press date: 28 October 2019
e-pub ahead of print date: 5 November 2019

Identifiers

Local EPrints ID: 435734
URI: http://eprints.soton.ac.uk/id/eprint/435734
ISSN: 1463-9076
PURE UUID: abb8f407-5061-4c7e-bd52-3f1e1f007489
ORCID for Peter R. Birkin: ORCID iD orcid.org/0000-0002-6656-4074
ORCID for Guy Denuault: ORCID iD orcid.org/0000-0002-8630-9492

Catalogue record

Date deposited: 19 Nov 2019 17:30
Last modified: 05 Nov 2020 05:01

Export record

Altmetrics

Contributors

Author: Peter R. Birkin ORCID iD
Author: Steven Linfield
Author: Guy Denuault ORCID iD

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×