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Reference type: Journal
Authors: Su MX, Liu ZY, Chen JL, Cheng LF, Li B, Yan F, Di B
Article Title: Stereoselective adsorption utilizing l-phenylalanine imprinting chiral ordered mesoporous silica.
Publication date: 2014
Journal: RSC Advances
Volume: 4
Issue: (98)
Page numbers: 54998-55002.
DOI: 10.1039/C4RA11302K

Abstract: l-Phenylalanine imprinting chiral ordered mesoporous silica (l-Phe-COMS) was facilely synthesized in the presence of phenylalanine amino acid by combining tetraethyl orthosilicate and quaternized aminosilane silica sources. The obtained COMS was comparable with a MCM-41-type structure, with narrow pore size distribution, and high specific surface area characterized by powder X-ray diffraction and N2 adsorption experiments. The imprinting chirality of COMS was disclosed by mixed and separate l- and d-phenylalanine adsorption on the l-Phe-COMS with a stereoselective adsorption capacity of up to 3.24. In addition, six racemic mixtures including amino acids and drugs were explored to test the stereoselective adsorption capacity of l-Phe-COMS. The imprinting chiral ordered mesoporous silica presents the advantages of straightforward synthesis approach and robust stereoselective adsorption capacity, making it a promising candidate for chiral adsorption and separation
Template and target information: L-phenylalanine, phenylalanine

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