Title :
Dependence of transmembrane voltage on pulsed electric field frequency
Author :
Li, Jiahui ; Wei, Xinlao ; Xu, Xiangfeng ; Wang, Yonghong
Author_Institution :
Key Lab. of Eng. Dielectrics & Its Applic., Harbin Univ. of Sci. & Technol., Harbin, China
Abstract :
This paper deduced the relationship of transmembrane voltage on cell membrane and frequency by solving the Laplace´s equation. The value of transmembrane voltage will decrease when the frequency of outer electric field increases, and this decrease will be faster if the frequency exceeds a certain frequency band. The transmembrane voltage is determined by frequency components contained in the pulse on the condition of the electric field intensity is fixed when a pulsed electric field is applied. The more low-frequency components contained, the larger transmembrane voltage is, and thus a better sterilization effect can be obtained. By comparing the frequency components contained in the three types of pulses mostly used in PEF and their sterilization effect respectively, the analysis of relationship of transmembrane voltage-frequency is validated.
Keywords :
Laplace equations; bioelectric phenomena; biomembrane transport; decontamination; food preservation; pulsed power technology; Laplace equation; cell membrane; frequency components; low-frequency components; nonthermal food preservation method; pulsed electric field frequency; sterilization effect; transmembrane voltage-frequency relationship; Biomembranes; Cells (biology); Dielectric materials; Educational technology; Extracellular; Frequency; Laboratories; Laplace equations; Microorganisms; Voltage; Frequency components; Laplace´s equation; Transmembrane voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2009. ICPADM 2009. IEEE 9th International Conference on the
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-4367-3
Electronic_ISBN :
978-1-4244-4368-0
DOI :
10.1109/ICPADM.2009.5252283
