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[通过核磁共振自旋回波方法的脉冲梯度测量水的扩散来确定生物系统中细胞及细胞内结构的尺寸分布]

[Distribution of the dimensions of cells and intracellular structures of biosystems from measurements of the diffusion of water by the impulse gradient of the NMR spin echo method].

作者信息

Anisimov A V, Miftakhutdinova F G

出版信息

Biofizika. 1977 Sep-Oct;22(5):866-71.

PMID:334271
Abstract

The method of impulse gradient of NMR spin-echo was applied for studying limited water diffusion in yeast cells and embryons of wheat caryopsis. Results are presented of measuring the amplitude of the echo signal depending on the intensity of the impulse gradient of the magnetic field reaching the values up to 1.7 kGs/cm. The method is suggested of determining on the basis of experimental data the distribution function parameters of the sizes of limiting cell compartments taking into account the permeability of their walls (membranes).

摘要

应用核磁共振自旋回波的脉冲梯度法研究酵母细胞和小麦颖果胚中有限的水扩散。给出了根据磁场脉冲梯度强度测量回波信号幅度的结果,磁场脉冲梯度强度可达1.7 kGs/cm。建议根据实验数据确定考虑细胞壁(膜)通透性的限制细胞区室大小的分布函数参数的方法。

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