Physical Review E
An improved electroporation model is used to address membrane irreversibility under ultrashort electric pulse conditions. It is shown that membranes can survive a strong electric pulse and recover provided the pore distribution has a relatively large spread. If, however, the population consists predominantly of larger radii pores, then irreversibility can result. Physically, such a distribution could arise if pores at adjacent sites coalesce. The requirement of close proximity among the pore sites is more easily satisfied in smaller organelles than in outer cell membranes. Model predictions are in keeping with recent observations of cell damage to intracellular organelles (e.g., mitochondria), without irreversible shock at the outer membranes, by a nanosecond, high-intensity electric pulse. This mechanism also explains the greater damage from multiple electric shocks.
Original Publication Citation
Joshi, R. P., & Schoenbach, K. H. (2002). Mechanism for membrane electroporation irreversibility under high-intensity, ultrashort electrical pulse conditions. Physical Review E, 66(5), 052901. doi:10.1103/PhysRevE.66.052901
Joshi, R. P. and Schoenbach, K. H., "Mechanism for Membrane Electroporation Irreversibility Under High-Intensity, Ultrashort Electrical Pulse Conditions" (2002). Bioelectrics Publications. 242.