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Preparation of Water-Insoluble Films Based on Silk Fibroin and Polysaccharide

Vol. 2 No. 6 (2024): International Journal of Integrative and Modern Medicine:

M. A. Sodiqova (1), Sh. A. Shomurotov (2), A. Karimov (3)

(1) Basic doctoral student of the Laboratory of Biologically Active Macromolecular Systems of the Institute of Bioorganic Chemistry of the UzRF, Uzbekistan
(2) Doctor of Chemistry, Associate Professor, Laboratory of Biologically Active Macromolecular Systems, Institute of Bioorganic Chemistry, UzRF, Uzbekistan
(3) Tashkent Pharmaceutical Institute, Department of Organic Synthesis, Doctor of Chemistry, Professor, Uzbekistan
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Abstract:

Silk fiber consists of fibroin (72-81%), sericin (19-28%) and other oils and waxes. Bombyx mori fibers consist of at least 16 amino acid residues, Silk has high molecular weight (200-350 kDa or more), large repetitive modular hydrophobic domains interrupted by small hydrophilic groups. Bombyx mori silk fibroin consists of heavy ( H ) and light ( L ) chains ( H – and L – fibroin, respectively ) connected by disulfide bonds. Ajizawa reagent (calcium chloride:ethanol:water (1:8:2) molar ratio solution) was used to dissolve the isolated fibroin in our further studies . Fibroin was dissolved in ajizawa solution (fibroin: ajizawa solution in a ratio of 1:20) at a temperature of 55 o C for 1 hour under constant stirring. Fibrous materials derived from polysaccharides and proteins affect the body's natural environment and thereby provide optimal conditions for tissue growth and regeneration. We obtained fibroin-polysaccharide based composites in our study as well. For this, fibroin and dextran, purified according to the above methods (dialdehyde dextran) composite material in the form of a film was obtained.