The Design of Acoustic Chambers for Bubble Dynamics Research

Cancelos, Silvina; Moraga, Francisco; Lahey, R.T.; Bouchilloux, Philippe

doi:10.1615/multscientechn.v17.i3.30

Cited by 5 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A detailed analysis of this type of acoustic chamber design has been reported elsewhere. 22 The results of the simulations show that at the resonance frequency, the highest pressure fluctuations occurred at the center of the tissue membrane ͓see Figs. 1͑C͒ and 1͑D͔͒.…”

Section: A Acoustic Chamber Descriptionmentioning

confidence: 95%

The effect of acoustically-induced cavitation on the permeance of a bullfrog urinary bladder

Cancelos¹,

Moraga²,

Lahey³

et al. 2010

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

It is well known that ultrasound enhances drug delivery to tissues, although there is not a general consensus about the responsible mechanisms. However, it is known that the most important factor associated with ultrasonically-enhanced drug permeance through tissues is cavitation. Here we report results from research conducted using a experimental approach adapted from single bubble sonoluminescence experiments which generates very well defined acoustic fields and allows controlled activation and location of cavitation. The experimental design requires that a biological tissue be immersed inside a highly degassed liquid media to avoid random bubble nucleation. Therefore, live frog bladders were used as the living tissue due to their high resistance to hypoxia. Tissue membrane permeance was measured using radiolabeled urea. The results show that an increase in tissue permeance only occurs when cavitation is present near the tissue membrane. Moreover, confocal microscopy shows a direct correlation between permeance increases and physical damage to the tissue.

show abstract

Section: A Acoustic Chamber Descriptionmentioning

confidence: 95%

The effect of acoustically-induced cavitation on the permeance of a bullfrog urinary bladder

Cancelos¹,

Moraga²,

Lahey³

et al. 2010

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

show abstract

“…This acoustic chamber has a Q-factor of 134 which is considered a high value for these type of acoustic experimental set-ups (Cancelos et al, 2005). At the first resonant frequency the chamber generates an acoustic pressure of ~357 KPa in amplitude at its center, with a voltage of 37 Volts applied to the PZT.…”

Section: High-q Resonatormentioning

confidence: 99%

Experiments with nano-scaled helium bubbles in water subjected to standing acoustic fields

Cancelos

Villamizar

Saavedra-Ruiz

et al. 2016

Nuclear Engineering and Design

View full text Add to dashboard Cite

Understanding the stability of gas filled bubbles dispersed in water, and the features that due to their presence must been taken into account in multiphase flow research, is amongst the most recent and relevant issue in a number of technological, physical and biological fields. Cavitation experiments were designed and conducted using one high-Q acoustic resonator that is able to oscillate at very well controlled conditions, allowing for the characterization of the effect that helium nanobubbles dispersed in water have on the cavitation activity. An increase in the inertial cavitation activity that correlates directly to the presence of the nanobubbles at the antinode was found. The results seem to indicate that the nanobubbles grow under tension to collapse under the compression phase. By other side, they behave as rigid entities under the influence of standing acoustic fields, moving away from the antinode region.

show abstract

Increasing the gas dissolution rate of bubbles via a non-invasive resonant acoustic technique

Rivera¹,

López

Cancelos

2022

Applied Acoustics

View full text Add to dashboard Cite

The Design of Acoustic Chambers for Bubble Dynamics Research

Cited by 5 publications

References 0 publications

The effect of acoustically-induced cavitation on the permeance of a bullfrog urinary bladder

The effect of acoustically-induced cavitation on the permeance of a bullfrog urinary bladder

Experiments with nano-scaled helium bubbles in water subjected to standing acoustic fields

Increasing the gas dissolution rate of bubbles via a non-invasive resonant acoustic technique

Contact Info

Product

Resources

About