Kryshtal' O A, Pidoplichko V I
Neirofiziologiia. 1977;9(6):644-6.
A method was developed to allow the registration of ionic current through the small areas of the membrane (10 mu2). The aim of the method is to obtain information on the properties of single ionic channels by the fluctuation analysis. The current through single Ca channel while transferring Ba (130 mM in the external media) is 0.21 +/- 0.06 X 10(-12) A according to tentative estimation. The corresponding value for Ca transfer is 0.1 X 10(-12) A. The upper limit for the single Ca channel conductance value is gCa less than or equal to 0.6 X 10(-12) PHI-1.
开发了一种方法,用于记录通过小面积膜(10μm²)的离子电流。该方法的目的是通过波动分析获取有关单个离子通道特性的信息。根据初步估计,在转移钡(外部介质中为130 mM)时,通过单个钙通道的电流为0.21±0.06×10⁻¹² A。钙转移的相应值为0.1×10⁻¹² A。单个钙通道电导值的上限为gCa≤0.6×10⁻¹² Φ⁻¹。