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Issue 31, 2015
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Interaction of l-alanyl-l-valine and l-valyl-l-alanine with organic vapors: thermal stability of clathrates, sorption capacity and the change in the morphology of dipeptide films

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Abstract

The strong effect of the amino acid sequence in L-alanyl-L-valine and L-valyl-L-alanine on their sorption properties toward organic compounds and water, and the thermal stability of the inclusion compounds of these dipeptides have been found. Generally, L-valyl-L-alanine has a greater sorption capacity for the studied compounds, but the thermal stability of the L-alanyl-L-valine clathrates is higher. Unusual selectivity of L-valyl-L-alanine for vapors of few chloroalkanes was observed. The correlation between the change in the surface morphology of thin film of dipeptides and stoichiometry of their clathrates with organic compounds was found. This discovery may be used to predict the influence of vapors on the morphology of films of short-chain oligopeptides.

Graphical abstract: Interaction of l-alanyl-l-valine and l-valyl-l-alanine with organic vapors: thermal stability of clathrates, sorption capacity and the change in the morphology of dipeptide films

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Publication details

The article was received on 08 Jun 2015, accepted on 08 Jul 2015 and first published on 08 Jul 2015


Article type: Paper
DOI: 10.1039/C5CP03309H
Phys. Chem. Chem. Phys., 2015,17, 20168-20177

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    Interaction of L-alanyl-L-valine and L-valyl-L-alanine with organic vapors: thermal stability of clathrates, sorption capacity and the change in the morphology of dipeptide films

    M. A. Ziganshin, N. S. Gubina, A. V. Gerasimov, V. V. Gorbatchuk, S. A. Ziganshina, A. P. Chuklanov and A. A. Bukharaev, Phys. Chem. Chem. Phys., 2015, 17, 20168
    DOI: 10.1039/C5CP03309H

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