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Ultrasound (US), in combination with microbubbles, has been found to be a potential alternative to viral therapies for transfecting biological cells. The translation of this technique to the clinical environment, however, requires robust and systematic optimization of the acoustic parameters needed to achieve a desired therapeutic effect. Currently, a variety of different devices have been developed to transfect cells in vitro, resulting in a lack of standardized experimental conditions and difficulty in comparing results from different laboratories. To overcome this limitation, we propose an easy-to-fabricate and cost-effective device for application in US-mediated delivery of therapeutic compounds. It comprises a commercially available cell culture dish coupled with a silicon-based "lid" developed in-house that enables the device to be immersed in a water bath for US exposure. Described here are the design of the device, characterization of the sound field and fluid dynamics inside the chamber and an example protocol for a therapeutic delivery experiment.

Original publication

DOI

10.1016/j.ultrasmedbio.2015.03.020

Type

Journal article

Journal

Ultrasound in medicine & biology

Publication Date

07/2015

Volume

41

Pages

1927 - 1937

Addresses

Department of Engineering Science, Institute of Biomedical Engineering, University of Oxford, Oxford, United Kingdom.

Keywords

Dimethylpolysiloxanes, Biocompatible Materials, Cell Culture Techniques, Electroporation, Equipment Design, Equipment Failure Analysis, Drug Evaluation, Preclinical, Transfection, Materials Testing, Radiometry, Radiation Dosage, Sonication, High-Energy Shock Waves, Computer-Aided Design