Electrically conductive biocompatible composite aerogel based on nanofibrillated template of bacterial cellulose/polyaniline/nano-clay
| Autor: | Hooman Golbaten-Mofrad, Soheila Zamanlui, Seyed Hassan Jafari, Vahabodin Goodarzi, Maliheh Entezari, Mohammad Hadi Salehi, Mehrdad Hashemi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Biocompatibility Cell Survival Composite number Biocompatible Materials 02 engineering and technology Biochemistry Nanomaterials Cell Line Nanocomposites 03 medical and health sciences chemistry.chemical_compound Mice Structural Biology Polyaniline Cell Adhesion Animals Thermal stability Cellulose Molecular Biology 030304 developmental biology 0303 health sciences Nanocomposite Aniline Compounds Bacteria Electric Conductivity Aerogel General Medicine Fibroblasts 021001 nanoscience & nanotechnology chemistry Chemical engineering Bacterial cellulose Clay 0210 nano-technology Gels Porosity |
| Zdroj: | International journal of biological macromolecules. 173 |
| ISSN: | 1879-0003 |
| Popis: | Bacterial cellulose (BC) aerogel owing to its porous and 3D structure, poses a suitable matrix for embedding nanomaterials and polymers. Herein, BC composites comprising nano-clay/polyaniline (PANI) were synthesized via a two-step procedure. Clay nanoplatelets were dispersed in the BC membrane to form a nanofibrillated template for aniline in-situ polymerization leading to formation of a double interconnected network of electrically conductive path within the aerogel. Deposition of PANI particles on BC/clay nanocomposite was confirmed by FTIR, XRD, FESEM, and EDX techniques. The surface electrical conductivity of 0.49 S/cm was obtained for the composite aerogel comprising 5 wt% nano-clay which is 16 folds higher than that of the sample without nano-clay. Thermal stability and storage modulus of the aerogels was improved by inclusion of PANI and nano-clay. Synergistic effect of clay and polyaniline on biocompatibility and cell adhesion was obtained with no mutagenic or carcinogenic effects. The developed electrically conductive composite aerogels can be utilized as suitable scaffolds for tissue engineering applications demanding a good balance of flexibility, dimensional and thermal stability and biocompatibility. |
| Databáze: | OpenAIRE |
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