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Silica colloidal membranes with enantioselective permeability
Authors
Abelow A.
Cichelli J.
+4 more
Ignacio-De Leon P.
Stoikov I.
Zharov I.
Zhukov A.
Publication date
1 January 2014
Publisher
Abstract
Robust mesoporous membranes composed of silica spheres were surface-modified with chiral selector moieties, including small molecules, macrocycles, and polymers. Diffusion rates of enantiomers of a chiral dye through the resulting asymmetrically modified colloidal membranes were measured and the corresponding permselectivities were calculated. The membranes showed enantioselectivities in the range of 1.2-1.8, which were not significantly affected by the structure of the surface-immobilized chiral electors. This selectivity is on par with most reported polymer-based solid membranes and bulk liquid membranes. The enantioselectivity results from the surface-facilitated mechanism of transport of enantiomers through the mesopores. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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Kazan Federal University Digital Repository
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oai:dspace.kpfu.ru:net/136183
Last time updated on 07/05/2019
Kazan Federal University Digital Repository
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:dspace.kpfu.ru:net/93987
Last time updated on 07/05/2019