分子尺寸的模型孔。径迹蚀刻膜的制备与表征。
Model pores of molecular dimension. The preparation and characterization of track-etched membranes.
作者信息
Quinn J A, Anderson J L, Ho W S, Petzny W J
出版信息
Biophys J. 1972 Aug;12(8):990-1007. doi: 10.1016/S0006-3495(72)86139-3.
Abstract
Extremely uniform pores of near molecular dimension can be formed by the irradiation-etching technique first demonstrated by Price and Walker. The technique has now been developed to the stage where it can be used to fabricate model membranes for examining the various steric, hydrodynamic, and electrodynamic phenomena encountered in transport through molecular-size pores. Methods for preparing and characterizing membranes with pores as small as 25 A (radius) are described in this paper. Results on pore size determination via Knudsen gas flow and electrolyte conduction are compared. Pore wall modification by monolayer deposition is also discussed.
摘要
通过普赖斯和沃克首次展示的辐照蚀刻技术，可以形成近乎分子尺寸的极其均匀的孔。该技术现已发展到可用于制造模型膜的阶段，以研究在通过分子尺寸孔的传输过程中遇到的各种空间、流体动力学和电动力学现象。本文描述了制备和表征孔径小至25埃（半径）的膜的方法。比较了通过克努森气流和电解质传导测定孔径的结果。还讨论了通过单层沉积对孔壁进行改性的问题。
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