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Surface-active substance monolayer stability after its formation
Author(s): Anna S. Kolesnikova; Roman A. Safonov; Oksana A. Shinkarenko; Mikhail V. Pozharov; Evgeny G. Glukhovskoy
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Paper Abstract

The effect of different concentrations of K+, Na+, Ca2+, Ni2+, Al3+ and Fe3+ ions on surface-active substance monolayer stability has been studied using molecular mechanics method. For numerical calculations, energy potential Amber was used. Arachidic acid was chosen as a surface-active substance for monolayer formation because it is insoluble in water at normal conditions. Energy stability values representing system stability was calculated for different ion concentrations. It is established that the most stable system is formed by trivalent metal ions and that system stability decreases together with ionic charge. For each type of ions, a concentration value corresponding to most optimal stability was found with further increase of ion concentration leading to decrease of stability.

Paper Details

Date Published: 7 March 2019
PDF: 7 pages
Proc. SPIE 10893, Reporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications XI, 108930R (7 March 2019); doi: 10.1117/12.2508370
Show Author Affiliations
Anna S. Kolesnikova, Saratov State Univ. (Russian Federation)
Roman A. Safonov, Saratov State Univ. (Russian Federation)
Oksana A. Shinkarenko, Saratov State Univ. (Russian Federation)
Mikhail V. Pozharov, Saratov State Univ. (Russian Federation)
Evgeny G. Glukhovskoy, Saratov State Univ. (Russian Federation)

Published in SPIE Proceedings Vol. 10893:
Reporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications XI
Samuel Achilefu; Ramesh Raghavachari, Editor(s)

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