1. Green approach for fabrication of bacterial cellulose-chitosan composites in the solutions of carbonic acid under high pressure CO 2 .
- Author
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Novikov IV, Pigaleva MA, Naumkin AV, Badun GA, Levin EE, Kharitonova EP, Gromovykh TI, and Gallyamov MO
- Subjects
- Biocompatible Materials chemistry, Biopolymers chemistry, Green Chemistry Technology, Microscopy, Electron, Scanning, Nanoparticles chemistry, Pressure, Spectroscopy, Fourier Transform Infrared, Thermogravimetry, Tissue Engineering methods, Tritium chemistry, X-Ray Diffraction, Bacteria metabolism, Carbon Dioxide chemistry, Carbonic Acid chemistry, Cellulose chemistry, Chitosan chemistry
- Abstract
The functionalization of the bacterial cellulose (BC) surface with a chitosan biopolymer to expand the areas of possible applications of the modified BC is an important scientific task. The creation of such composites in the carbonic acid solutions that were performed in this work has several advantages in terms of being biocompatible and eco-friendly. Quantitative analysis of chitosan content in the composite was conducted by tritium-labeled chitosan radioactivity detection method and this showed three times increased chitosan loading. Different physicochemical methods showed successful incorporation of chitosan into the BC matrix and interaction with it through hydrogen bonds. Microscopy results showed that the chitosan coating with a thickness of around 10 nm was formed in the bulk of BC, covering each microfibril. It was found that the inner specific surface area increased 1.5 times on deposition of chitosan from the solutions in carbonic acid., (Copyright © 2021 Elsevier Ltd. All rights reserved.)
- Published
- 2021
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