Cited by 125Ultrasound and Cavitation PhenomenaUltrasound and Hyperthermia ApplicationsUltrasonics and Acoustic Wave Propagation

Single-transducer dual-frequency ultrasound generation to enhance acoustic cavitation

Liu, Hao-Li, Hsieh, Chao-Ming·2009·Ultrasonics Sonochemistry

Abstract

Dual- or multiple-frequency ultrasound stimulation is capable of effectively enhancing the acoustic cavitation effect over single-frequency ultrasound. Potential application of this sonoreactor design has been widely proposed such as on sonoluminescence, sonochemistry enhancement, and transdermal drug release enhancement. All currently available sonoreactor designs employed multiple piezoelectric transducers for generating single-frequency ultrasonic waves separately and then these waves were mixed and interfered in solutions. The purpose of this research is to propose a novel design of generating dual-frequency ultrasonic waves with single piezoelectric elements, thereby enhancing acoustic cavitation. Macroscopic bubbles were detected optically, and they were quantified at either a single-frequency or for different frequency combinations for determining their efficiency for enhancing acoustic cavitation. Visible bubbles were optically detected and hydrogen peroxide was measured to quantify acoustic cavitation. Test water samples with different gas concentrations and different power levels were used to determine the efficacy of enhancing acoustic cavitation of this design. The spectrum obtained from the backscattered signals was also recorded and examined to confirm the occurrence of stable cavitation. The results confirmed that single-element dual-frequency ultrasound stimulation can enhance acoustic cavitation. Under certain testing conditions, the generation of bubbles can be enhanced up to a level of five times higher than the generation of bubbles in single-frequency stimulation, and can increase the hydrogen peroxide production up to an increase of one fold. This design may serve as a useful alternative for future sonoreactor design owing to its simplicity to produce dual- or multiple-frequency ultrasound.

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Crossref · 10.1016/j.ultsonch.2008.08.009

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Authors
Liu, H.-L., & Hsieh, C.-M.
Affiliations
  • National Health Research Institutes (TW)
  • Chang Gung University (TW)
Corresponding author
Liu, Hao-Li
Venue
Ultrasonics Sonochemistry
Publisher
Elsevier BV
Published
2009-03
Volume
16
Issue
3
Pages
431-438
ISSN
1350-4177 (ISSN-L)
OpenAlex
W1987619742
Cited by
125
References
28
Citations by year
2026: 8 · 2025: 8 · 2024: 15 · 2023: 11 · 2022: 8 · 2021: 8 · 2020: 16 · 2019: 6 · 2018: 5 · 2017: 14 · 2016: 4 · 2015: 4 · 2014: 6 · 2013: 4 · 2012: 5
FWCI
0.51
Type
journal article
Language
en
Open access
closed
Locations
  • Ultrasonics Sonochemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Health Research Institutes
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Ultrasound and Cavitation Phenomena
  • Physical Sciences › Engineering › Biomedical Engineering › Ultrasound and Hyperthermia Applications
  • Physical Sciences › Engineering › Mechanics of Materials › Ultrasonics and Acoustic Wave Propagation
Keywords
dual-frequency ultrasound, acoustic cavitation, bubble formation, hydrogen peroxide production, stable cavitation, sonoluminescence
MeSH terms
Computer Simulation, Equipment Design, Hydrogen Peroxide, Oxygen, Ultrasonics, Equipment Failure Analysis, Microbubbles

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