Soldatova E A, Pasechnik V I, Tychinskaia T V, Gianik T
Biofizika. 1980 May-Jun;25(3):484-90.
Electrostriction properties of onion bulb epidermis plasma membrane were investigated in a wide frequency range 40 Hz divided by 2kHz and alternative voltage magnitude 140 mV divided by divided by 700 mV. Dynamic Young's modulus [E perpendicular] in direction normal to the membrane surface and loss angle were measured; strong [E perpendicular] and phi dependences on frequency were demonstrated. [E perpendicular] rises as the frequency increases and reached 10(8)-10(9) Pa like BLM prepared from egg lectin-n-hexadecane solution. In the temperature range of 19-30 degrees C [E perpendicular] does not vary more than 20%. The values phi approximately 60 degrees are obtained for different preparations in the whole frequency range. A correlation between electrostriction properties and the physiological state of preparation is marked.
在40Hz至2kHz的宽频率范围以及140mV至700mV的交变电压幅度下，研究了洋葱鳞茎表皮质膜的电致伸缩特性。测量了垂直于膜表面方向的动态杨氏模量[E⊥]和损耗角；结果表明[E⊥]和φ对频率有强烈依赖性。[E⊥]随频率增加而升高，达到10⁸ - 10⁹Pa，类似于由鸡蛋凝集素 - 正十六烷溶液制备的BLM。在19 - 30℃的温度范围内，[E⊥]的变化不超过20%。在整个频率范围内，不同制剂获得的φ值约为60°。电致伸缩特性与制剂的生理状态之间存在明显的相关性。
