Enantioselective recognition at mesoporous chiral metal surfaces
| Autor: | Yémima Bon Saint Côme, Chompunuch Warakulwit, Alexander Kuhn, Véronique Lapeyre, Chularat Wattanakit, Sudarat Yadnum, Somkiat Nokbin, Philippe A. Bopp, Matthias Heim, Jumras Limtrakul |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Multidisciplinary
Materials science High Energy Physics::Lattice Enantioselective synthesis General Physics and Astronomy chemistry.chemical_element Context (language use) Nanotechnology General Chemistry General Biochemistry Genetics and Molecular Biology Article chemistry Liquid crystal Enantiomer Chirality (chemistry) Mesoporous material Platinum Molecular imprinting |
| Zdroj: | Nature Communications |
| ISSN: | 2041-1723 |
| Popis: | Chirality is widespread in natural systems, and artificial reproduction of chiral recognition is a major scientific challenge, especially owing to various potential applications ranging from catalysis to sensing and separation science. In this context, molecular imprinting is a well-known approach for generating materials with enantioselective properties, and it has been successfully employed using polymers. However, it is particularly difficult to synthesize chiral metal matrices by this method. Here we report the fabrication of a chirally imprinted mesoporous metal, obtained by the electrochemical reduction of platinum salts in the presence of a liquid crystal phase and chiral template molecules. The porous platinum retains a chiral character after removal of the template molecules. A matrix obtained in this way exhibits a large active surface area due to its mesoporosity, and also shows a significant discrimination between two enantiomers, when they are probed using such materials as electrodes. Chemical synthesis of chiral materials with enantioselective properties is an ongoing challenge. Here, the authors fabricate a chirally imprinted mesoporous metal from the electrochemical reduction of platinum salts in the presence of a liquid crystal phase and chiral templating molecules. |
| Databáze: | OpenAIRE |
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