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PREPARATION AND PHYSICOCHEMICAL CHARACTERISTICS OF AN IODINE AND BISMUTH CONTAINING COMPOSITE MATERIAL BASED ON CHITOSAN

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Sklyar A., Kalinkevich O., Kalinkevich A., Chivanov V.
Progress on Chemistry and Application of Chitin and its Derivatives
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2023
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vol. 28
160-165
EN
We created composite materials by using a straightforward method, combining chitosan, iodine, and bismuth. We used two chitosan with two different molecular masses. We used iodine in the composites as chitosan iodide and bismuth in the form of tetraiodobismuthanuide. We analysed the resulting materials with scanning electron microscopy, X-ray diffraction, temperature-programmed desorption mass spectrometry, and visible light spectroscopy. We observed that bismuth and iodine were evenly distributed throughout the composites and did not separate into distinct phases. These composite materials have the ability to form organised porous sponges, making them suitable for a wide range of applications in different fields.
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PREPARATION AND CHARACTERISATION OF NEW BIOMATERIALS BASED ON CHITOSAN IODIDE WITH BIOLOGICALLY ACTIVE DYES

64%
Kalinkevich O., Sklyar A., Kalinkevich A., Chivanov V., Zinchenko Y., Trofimenko Y., Starikov V., Sofronov D., Holubnycha V.
Progress on Chemistry and Application of Chitin and its Derivatives
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2021
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vol. 26
121-134
EN
New composite materials were obtained based on chitosan iodide and organic dyes – methylene blue and fuchsine in fucorcin (Castellani liquid) – by using a simple synthetic procedure. The materials were characterised by scanning electron microscopy, X-ray diffraction, temperature-programmed desorption mass spectrometry, infrared spectroscopy and visible and ultraviolet light spectroscopy. The dyes in the composites were distributed uniformly and did not form separate phases. These composites could form structured porous sponges and films and therefore be used in various fields of application. The materials displayed antibacterial activity against antibiotic resistant gram-positive and gram-negative bacteria.
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