Shock Wave Generation in Water for Biological Studies

Author

Dongkoo Kang ; Jong Bong Nah ; Cho, Moonju ; Shu Xiao

Author_Institution

Frank Reidy Res. Center for Bioelectrics, Old Dominion Univ., Norfolk, VA, USA

Volume

42

Issue

10

fYear

2014

fDate

Oct. 2014

Firstpage

3231

Lastpage

3238

Abstract

We have used a pulsed power generator based on stacking MOSFET switches to create breakdown in water and generate shock waves. The pulses with an exponential decay have a maximum voltage of 4 kV. With the pulse application of approximately 50 μs, the breakdown voltage is approximately 3 kV. Post-breakdown events, such as shock wave emission and bubble expansion and collapse were recorded by a fast camera. The shock speed was recorded as 1.5 km/s and the maximum bubble diameter is 2.3 mm. This shock wave generator can be used on the microscope and provides a means of studying the shock impact on biological cells.

Keywords

biological effects of fields; cellular effects of radiation; discharges (electric); shock wave effects; biological cells; biological studies; bubble collapse; bubble expansion; pulsed power generator; shock impact; shock wave emission; shock wave generation; stacking MOSFET switches; water; Current measurement; Electrodes; Equations; Plasmas; Resistance; Shock waves; Voltage measurement; Biological studies; shock wave; stacking MOSFETs; water breakdown;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2014.2339171

Filename

6871378