A model for the chiral recognition of L and D amino acids by helicoidal systems |
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Authors: | E. Alvira |
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Affiliation: | (1) Departmento de Física Fundamental y Experimental, Universidad de La Laguna, 38203 Tenerife, Spain |
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Abstract: | Summary The interaction between a helix and an amino acid molecule is determined on the basis of semi-empirical potentials including Lennard-Jones, electrostatic, induction and hydrogen bond contributions. Calculations are performed for various values of the helix characteristics which schematize helicoidal polysaccharides (cellulose, cellulose derivatives). The helix configuration acts as a chiral revealer as it frozes the amino acid inside its cavity. The chiral discriminatory ratio is maximum for similar sizes of the cavity and of the analyte. |
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Keywords: | Amino acids Helicoidal polymer phase Amino acid molecule Chirality Chiral revealer |
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