枪乌贼巨大轴突膜中的钾离子和钠离子电流噪声。
Potassium and sodium ion current noise in the membrane of the squid giant axon.
作者信息
Conti F, De Felice L J, Wanke E
出版信息
J Physiol. 1975 Jun;248(1):45-82. doi: 10.1113/jphysiol.1975.sp010962.
Abstract
- The spectral density of current noise power from 20 mm segments of giant axons of the squid Loligo vulgaris has been measured under space-clamp and voltage-clamp conditions. From 4 to 1000 Hz the measured noise is larger by several orders of magnitude than the theoretical thermal noise. The amplifier's noise, which may yield appreciable contributions above 200 Hz, could be evaluated and subtracted from the total noise using direct measurements of the membrane impedance...
摘要
- 在空间钳制和电压钳制条件下，对普通枪乌贼巨大轴突20毫米节段的电流噪声功率谱密度进行了测量。在4至1000赫兹范围内，测得的噪声比理论热噪声大几个数量级。放大器的噪声在200赫兹以上可能会产生明显影响，可以通过直接测量膜阻抗来评估并从总噪声中减去……
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Slow changes of potassium permeability in the squid giant axon.鱿鱼巨大轴突中钾离子通透性的缓慢变化。
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The binding of tetrodotoxin to nerve membranes.河豚毒素与神经膜的结合。
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