Design of chemically modified bacteriorhodopsin films for information protection systems

Authors

DOI:

https://doi.org/10.15587/1729-4061.2022.265858

Keywords:

bacteriorhodopsin, photocycle, film structures, photosensitivity, chemical modification, triethanolamine, information protection

Abstract

The object of this study is the processes of interaction of fragments of purple membranes with certain chemicals, which affect the photochromic properties of bacteriorhodopsin films. This paper considers the possibility of modifying the properties of bacteriorhodopsin films by changing their chemical composition, which will make it possible to use such films to protect information. For this purpose, it has been determined which optical properties of bacteriorhodopsin are most important for its use in the field of information protection; films were made using various chemicals as impurities. It was shown that the introduction of impurities does not affect the absorption spectrum of bacteriorhodopsin, which indicates that it retains its properties. It has been established that impurity substances are evenly distributed in films. By studying the dynamics of photoinduced changes in films with different concentrations of chemical components, the effect of chemical modification on the photocycle of bacteriorhodopsin and the properties of film structures based on it was studied.

Based on the results of experimental studies, it was found that by changing the chemical composition of films, it is possible to change the time of storage of the information recorded on them in the range from several to hundreds of seconds continuously. The sensitometric sensitivity of film structures also depends on the chemical composition and can vary in the range from 3.9·10–3 to 54·10–3 m2/J. At the same time, chemical modification is simpler from a technological point and cheaper from a financial point of view compared to other methods that make it possible to achieve similar results. The reported results suggest that chemically modified films based on bacteriorhodopsin have great potential for practical application in the field of information protection and access control

Author Biographies

Ivan Trikur, Uzhhorod National University

PhD, Senior Researcher

Research Institute of Physics and Chemistry of Solid States

Zita Batori-Tartsi, Uzhhorod National University

PhD, Researcher

Department of Solid-State Electronics, Information Security

Mykhailo Sichka, Uzhhorod National University

PhD, Associate Professor

Department of Solid-State Electronics, Information Security

Galina Rizak, Uzhhorod National University

PhD, Associate Professor

Department of Organic Chemistry

Vasyl Rizak, Uzhhorod National University

Doctor of Physical and Mathematical Sciences, Professor

Department of Solid-State Electronics, Information Security

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Design of chemically modified bacteriorhodopsin films for information protection systems

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Published

2022-10-30

How to Cite

Trikur, I., Batori-Tartsi, Z., Sichka, M., Rizak, G., & Rizak, V. (2022). Design of chemically modified bacteriorhodopsin films for information protection systems. Eastern-European Journal of Enterprise Technologies, 5(6 (119), 6–14. https://doi.org/10.15587/1729-4061.2022.265858

Issue

Vol. 5 No. 6 (119) (2022): Technology organic and inorganic substances

Section

Technology organic and inorganic substances

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Copyright (c) 2022 Ivan Trikur, Zita Batori-Tartsi, Mykhailo Sichka, Galina Rizak, Vasyl Rizak

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