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Nano Second Pulse Electric Field

Michael B Sano, Christopher B Arena, Matthew R DeWitt, Dieter Saur, Rafael V Davalos
Under the influence of external electric fields, cells experience a rapid potential buildup across the cell membrane. Above a critical threshold of electric field strength, permanent cell damage can occur, resulting in cell death. Typical investigations of electroporation effects focus on two distinct regimes. The first uses sub-microsecond duration, high field strength pulses while the second uses longer (50 μs+) duration, but lower field strength pulses. Here we investigate the effects of pulses between these two extremes...
December 2014: Bioelectrochemistry
Dong Yin, Wangrong G Yang, Jack Weissberg, Catherine B Goff, Weikai Chen, Yoshio Kuwayama, Amanda Leiter, Hongtao Xing, Antonie Meixel, Daria Gaut, Fikret Kirkbir, David Sawcer, P Thomas Vernier, Jonathan W Said, Martin A Gundersen, H Phillip Koeffler
Nanosecond pulsed electric fields (nsPEF) induce apoptotic pathways in human cancer cells. The potential therapeutic effective of nsPEF has been reported in cell lines and in xenograft animal tumor model. The present study investigated the ability of nsPEF to cause cancer cell death in vivo using carcinogen-induced animal tumor model, and the pulse duration of nsPEF was only 7 and 14 nano second (ns). An nsPEF generator as a prototype medical device was used in our studies, which is capable of delivering 7-30 nanosecond pulses at various programmable amplitudes and frequencies...
2012: PloS One
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