Takashima S, Schwan H P
Biophys J. 1985 Apr;47(4):513-8. doi: 10.1016/S0006-3495(85)83945-X.
It is well known that electromagnetic fields cause mechanical forces. If one applies an electrical field to a suspension of microscopic particles, these particles realign themselves along the direction of the field and form pearl-chain-like aggregates. These chains are mostly single stranded but they are frequently multistranded. This phenomenon has been investigated by a number of groups. Here we discuss the dependence of threshold field strength on particle size and frequency. Also, pulsed fields have been thought to be more effective than continuous fields of the same average power in evoking biological effects. Our measurement of the threshold power requirement for the pearl-chain formation indicates that pulsed fields require as much power as continuous fields. The biological significance of pearl-chain formation is briefly discussed.
众所周知，电磁场会产生机械力。如果对微观粒子的悬浮液施加电场，这些粒子会沿电场方向重新排列，并形成珍珠链状聚集体。这些链大多是单链的，但也经常是多链的。许多研究小组都对这一现象进行了研究。在这里，我们讨论阈值场强对颗粒大小和频率的依赖性。此外，人们认为在引发生物效应方面，脉冲场比具有相同平均功率的连续场更有效。我们对形成珍珠链所需阈值功率的测量表明，脉冲场所需的功率与连续场一样多。本文还简要讨论了珍珠链形成的生物学意义。
