Chiral permselectivity in surface-modified nanoporous opal films.

Julie Cichelli; Ilya Zharov

doi:10.1021/ja062672g

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Chiral permselectivity in surface-modified nanoporous opal films.

Julie Cichelli·Ilya Zharov

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Abstract

Nanoporous 7 mum thin opal films comprising 35 layers of 200 nm diameter SiO2 spheres were assembled on Pt electrodes and modified with chiral selector moieties on the silica surface. Diffusion of chiral redox species through the opals was studied by cyclic voltammetry. The chiral opal films demonstrate high selectivity for transport of one enantiomer over the other. This chiral permselectivity is attributed to the surface-facilitated transport utilizing noncovalent interactions between the chiral permeant molecules and surface-bound chiral selectors.

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Chemistry, Pharmaceutical Electrochemistry Electrodes Ferrous Compounds Membranes, Artificial Metallocenes Molecular Structure Nanotechnology Porosity Silicon Dioxide Stereoisomerism Surface Properties Journal Article Research Support, Non-U.S. Gov't

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Julie Cichelli, Ilya Zharov. 2006-06-28. Chiral permselectivity in surface-modified nanoporous opal films.. https://doi.org/10.1021/ja062672g

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