Cyclodextrin-Based Supramolecular Hydrogel as a Selective Chiral Adsorption/Separation Platform for Tryptophan Enantiomers,ACS Applied Polymer Materials

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Cyclodextrin-Based Supramolecular Hydrogel as a Selective Chiral Adsorption/Separation Platform for Tryptophan Enantiomers
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2020-11-13 , DOI: 10.1021/acsapm.0c00958
Yin-Xing Yan ₁ , Yi Zhang ₁ , Yong Chen ₁ , Yu Liu _{1,

2}

Affiliation

A supramolecular hydrogel based on noncovalent interactions has the advantages of specific recognition, stimuli responsiveness, and environmental friendliness. The construction of supramolecular hydrogels with chiral recognition properties by simple methods has received tremendous attention. In this paper, a supramolecular hybrid hydrogel was constructed by combining Cu²⁺-modified β-cyclodextrin (Cu-β-CD) with inorganic clay through electrostatic interactions. Significantly, the resultant hybrid hydrogel could selectively adsorb tryptophan against some other amino acids, and the maximum adsorption quantum of the hybrid hydrogel toward l-tryptophan (l-Trp) was 6.67 times than that toward d-tryptophan (d-Trp). Therefore, the supramolecular hydrogel could act as a selective adsorption and separation platform for tryptophan enantiomers and have great application prospects in the chiral separation of amino acids.

中文翻译：

基于环糊精的超分子水凝胶作为色氨酸对映体的选择性手性吸附/分离平台

基于非共价相互作用的超分子水凝胶具有特异性识别，刺激反应性和环境友好的优点。通过简单的方法构建具有手性识别特性的超分子水凝胶备受关注。本文通过静电相互作用将Cu ²⁺修饰的β-环糊精（Cu-β-CD）与无机粘土结合，构建了一种超分子杂化水凝胶。值得注意的是，所得的杂化水凝胶可以选择性地吸附色氨酸对其他氨基酸，杂化水凝胶对l-色氨酸（l -Trp）的最大吸附量是对d-色氨酸（d-Trp）。因此，超分子水凝胶可以作为色氨酸对映体的选择性吸附和分离平台，在氨基酸的手性分离中具有广阔的应用前景。

更新日期：2020-12-11

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