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Selective membrane transport of amino acids by functionalised calix[4]arenes
Date issued
2010
Author(s)
Kim, Lidia
Hamdi, Abdelwaheb
Stancu, Ana Delia
Souane, Rachid
Mutihac, Lucia
Vicens, Jacques
Abstract
The selective active transport through liquid membrane assisted by the pH gradient of amino acid
methylesters by using a series of calix[4]arenes substituted by acid and amido functions, glycolic chains, and hydroxyl groups as carriers has been performed. All these receptors have been found to act as carriers for transport of aromatic amino acid methylesters from the aqueous source phase to the aqueous receiving phase aiming at their separation. The receptors bearing diacid and tetraamido functions have the better ability to transport of amino acids than the other receptors studied. The influence of calixarene and amino acid structures upon transport through liquid membrane is discussed. The obtained results are correlated with those
acquired by solvent extraction.
methylesters by using a series of calix[4]arenes substituted by acid and amido functions, glycolic chains, and hydroxyl groups as carriers has been performed. All these receptors have been found to act as carriers for transport of aromatic amino acid methylesters from the aqueous source phase to the aqueous receiving phase aiming at their separation. The receptors bearing diacid and tetraamido functions have the better ability to transport of amino acids than the other receptors studied. The influence of calixarene and amino acid structures upon transport through liquid membrane is discussed. The obtained results are correlated with those
acquired by solvent extraction.
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