Dielectric variations of potato induced by irreversible electroporation under different pulses based on the cole-cole model

To investigate dielectric property variations induced by electric pulses, equivalent doses of conventional irreversible electroporation (IRE) and high-frequency IRE were used to treat potato slices. The dielectric property of the potatoes were measured before and after treatment in the frequency ban...

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Bibliographic Details
Published in:IEEE transactions on dielectrics and electrical insulation 2017, Vol.24 (4), p.2225-2233
Main Authors: Yao, Chenguo, Zhao, Yajun, Liu, Hongmei, Dong, Shoulong, Lv, Yanpeng, Ma, Jianhao
Format: Article
Language:English
Subjects:
Cole-Cole model
Conductivity
Current measurement
Dielectric measurement
Dielectric properties
dielectric property
Dielectrics
Electric pulses
Electroporation
Equivalence
Frequency measurement
high-frequency irreversible electroporation
Irreversible electroporation
Potatoes
Pulse duration
Pulse measurements
Voltage measurement
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Summary:To investigate dielectric property variations induced by electric pulses, equivalent doses of conventional irreversible electroporation (IRE) and high-frequency IRE were used to treat potato slices. The dielectric property of the potatoes were measured before and after treatment in the frequency band of 0.1 Hz-10 MHz, and then the Cole-Cole model was used to fit the experimental data in the frequency band of 1 kHz-10 MHz to explain the β dispersion mechanism. The Cole-Cole model parameters showed that under an equivalent dose, the conventional IRE pulses were more efficient than the high-frequency IRE pulses for electroporation. After treatment with conventional IRE pulses, the DC conductivity greatly increased at time 0 after the pulses and showed little recovery over time. The electroporation effect of the high-frequency IRE pulses improved with increasing pulse duration. This study presents a potential new method for evaluating the effects of IRE during and immediately after the treatment process.
ISSN:1070-9878
1558-4135
DOI:10.1109/TDEI.2017.006305