Hildegard Metzger

h.metzger.1@research.gla.ac.uk

(she/her) 

ORCID iDhttps://orcid.org/0000-0003-2662-4690

Research title: Clarity for the Cavity: a Framework for Acoustic Cavitation Measurement and Reporting

Research Summary

Cavitation (ultrasonically driven bubble activity) has a variety of applications in the medical and industrial sectors. However, there is currently no framework for the measurement and reporting of cavitation which means that the scientific literature is inconsistent, and it is difficult to compare studies from different groups. Current issues include metrics, such as the mechanical index, that are being used beyond their limitations and a lack of a proper classification system means that cavitation is often categorised as either stable or inertial with little scientific reasoning.

The aim of my project is to develop a scientifically grounded framework that will tackle these issues and will allow for meaningful comparison between similar studies over a range of medical and industrial applications. To do this, I will study many types of cavitation in experiments that are representative of the applications. High-speed imaging with parallel acoustic monitoring will help determine a fundamental understanding of the acoustic cavitation signal, which will allow for the critical analysis of current practices and propose new ones.

In partnership with Precision Acoustics Ltd, I hope to share my findings with the British Standards Institute (BSI) committee on ultrasonics and contribute to international standards that will ensure more consistency in cavitation research. 

This project is part of The EPSRC Centre for Doctoral Training in Future Ultrasonic Engineering (FUSE CDT)

Publications

List by: Type | Date

Jump to: 2024 | 2023
Number of items: 2.

2024

Vlatakis, S., Zhang, W., Thomas, S., Cressey, P., Moldovan, A. C., Metzger, H., Prentice, P. , Cochran, S. and Thanou, M. (2024) Effect of phase-change nanodroplets and ultrasound on blood-brain barrier permeability in vitro. Pharmaceutics, 16(1), 51. (doi: 10.3390/pharmaceutics16010051)

2023

Zhang, W. et al. (2023) Characterising the chemical and physical properties of phase-change nanodroplets. Ultrasonics Sonochemistry, 97, 106445. (doi: 10.1016/j.ultsonch.2023.106445) (PMID:37257208)

This list was generated on Wed Apr 24 00:43:11 2024 BST.
Jump to: Articles
Number of items: 2.

Articles

Vlatakis, S., Zhang, W., Thomas, S., Cressey, P., Moldovan, A. C., Metzger, H., Prentice, P. , Cochran, S. and Thanou, M. (2024) Effect of phase-change nanodroplets and ultrasound on blood-brain barrier permeability in vitro. Pharmaceutics, 16(1), 51. (doi: 10.3390/pharmaceutics16010051)

Zhang, W. et al. (2023) Characterising the chemical and physical properties of phase-change nanodroplets. Ultrasonics Sonochemistry, 97, 106445. (doi: 10.1016/j.ultsonch.2023.106445) (PMID:37257208)

This list was generated on Wed Apr 24 00:43:11 2024 BST.

Supervisors

Conference

Ultrasonic Industry Association Symposium 2023 (UIA51)

  • Poster 3.4 MHz Resonance in Cavitation Shockwave Detection with Fibre-Optic Hydrophones
  • Poster A Tube Transducer for Flow-based Ultrasonically Enhanced Technology Critical Metal Recovery

Additional Information

  •  FUSE CDT Equality, Diversity & Inclusion Student Representative
  •  FUSE CDT Annual Meeting Co-chair 2022