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

Literature Information

Publication Date 2015-07-08
DOI 10.1039/C5CP03309H
Impact Factor 3.676
Authors

Marat A. Ziganshin, Nadezhda S. Gubina, Alexander V. Gerasimov, Valery V. Gorbatchuk, Sufia A. Ziganshina, Anton P. Chuklanov, Anastas A. Bukharaev


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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.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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