Nanotubule-Based Molecular-Filtration Membranes

作者：Kshama B. Jirage, John C. Hulteen, Charles R. Martin · 发表于：Science · 年份：1997 · DOI：10.1126/science.278.5338.655 · 被引用次数：590 · 研究领域：Microfluidic and Capillary Electrophoresis Applications、Nanopore and Nanochannel Transport Studies、Membrane Separation and Gas Transport

Polymeric membranes that contain a collection of monodisperse gold nanotubules, with inside diameters of molecular dimensions (less than 1 nanometer), were used in a simple membrane-permeation experiment to cleanly separate small molecules on the basis of molecular size. For example, when such a membrane was presented with an aqueous feed solution containing pyridine (molecular weight 79) and quinine (molecular weight 324), only the smaller pyridine molecule was transported through the nanotubules and into a receiver solution on the other side of the membrane.