Abstract
The article deals with dendritic structures resulting from self-organization processes in aqueous solutions of albumin proteins. The methods for obtaining the structures and experimental results are presented. It is shown that dendrites are fractal structures that are symmetric under certain conditions of their formation and can have different characteristics depending on the isothermal dehydration of liquid samples. The fractal dimension of the structures in films of the albumin protein solution has been calculated. Dependences of the fractal dimension on the concentrations of salts and protein in the initial solutions and also on the dehydration temperature have been revealed. It has been shown that as the protein concentration in the solution grows, the salt concentration for the initiation of the dendritic structure formation increases. It has been found that the temperature dependences of the fractal dimension of the structures become smoother with increasing protein concentration in solutions. The relationship between geometric characteristics of dendrites and self-organization parameters during drying is discussed.
Highlights
Thin films made of various materials are widely used in science, industry, and medicine and attract the attention of many researchers [1–5]
The article discusses the dendritic structures formed as a result of self-organization processes of biomolecular solutions, in particular, a solution of water-salt protein albumin
It has been shown that the presence of dendrites and their geometric characteristics largely depend on the self-organization parameters in the process of isothermal dehydration of biomolecular solutions
Summary
Thin films made of various materials are widely used in science, industry, and medicine and attract the attention of many researchers [1–5] These structures can be independent electronic components or building blocks with a great potential in physical optics. Self-organized thin protein films can be viewed from the standpoint of promising materials for the development of biomolecular electronics devices due to the ability of biological molecules to accumulate and convert energy. Changes in the control parameter will result in biomolecular thin films of various types and properties. These properties (electrical, optical, mechanical) can be predicted by studying the structures formed as a result of self-organization processes [14–16]. It is necessary to determine the characterization parameters and select methods for studying
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