Preparation and Characterisation of New Biomaterials Based on Chitosan Iodide With Biologically Active Dyes

Abstract

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.

Promising Developments in Bio-Based Products as Alternatives to Conventional Plastics to Enable Circular Economy in Ukraine

“…Crustacean processing wastes (ocean krill, shrimp, and crabs) are mainly used as a source of chitin, but other sources, such as fungal biomass and insect exoskeletons, have recently received increasing attention in this regard [52]. In addition to packaging materials, it is possible to produce a lot of other materials based on chitin and chitosan that have a number of valuable consumer properties [53]. Among the many bio-based products and bioplastic initiatives, the production technology based on the use of mycelia deserves special attention.…”