Biocomposite Materials Based on Chitosan and Lignin: Preparation and Characterization
Elena Rosova,
Natalia Smirnova,
Elena Dresvyanina,
Valentina Smirnova,
Elena Vlasova,
Elena Ivan’kova,
Maria Sokolova,
Tatiana Maslennikova,
Konstantin Malafeev,
Konstantin Kolbe,
Mikko Kanerva,
Vladimir Yudin
Affiliations
Elena Rosova
Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St Petersburg, Russia
Natalia Smirnova
Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St Petersburg, Russia
Elena Dresvyanina
Institute of Biomedicine Systems and Biotechnology, Peter the Great St Petersburg Polytechnic University, Polytechnicheskaya Street 29, 195251 St Petersburg, Russia
Valentina Smirnova
Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St Petersburg, Russia
Elena Vlasova
Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St Petersburg, Russia
Elena Ivan’kova
Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St Petersburg, Russia
Maria Sokolova
Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St Petersburg, Russia
Tatiana Maslennikova
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, Makarova Emb. 2, 199034 St Petersburg, Russia
Konstantin Malafeev
Institute of Biomedicine Systems and Biotechnology, Peter the Great St Petersburg Polytechnic University, Polytechnicheskaya Street 29, 195251 St Petersburg, Russia
Konstantin Kolbe
Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St Petersburg, Russia
Mikko Kanerva
Materials Science and Environmental Engineering, Tampere University, P.O. Box 589, FI-33101 Tampere, Finland
Vladimir Yudin
Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St Petersburg, Russia
In this study, bioactive composite systems based on natural polymers (chitosan and lignin) were prepared in this study. The structural, mechanical, and morphological properties of chitosan-based materials containing various amounts of lignin filler were investigated. The infra-red IR spectroscopy data confirmed the formation of chemical bonds between the components of the obtained composites. The mechanical properties of film samples were studied in air and in physiological solution. It was demonstrated that the breaking elongation values of the obtained film samples in the wet state were higher (150–160%) than the corresponding (average) value of a pure chitosan film (100%). The scanning electron microscopy and atomic force microscopy data demonstrated that the introduction of lignin had caused significant changes in the surface morphology of films. The appearance of a strongly pronounced texture and porosity facilitated cell proliferation on the surface of composites, i.e., the bioactivity of film samples was enhanced with an increasing lignin content in the chitosan matrix.
