Synergistic effect of carbon nanotubes on chitosan-graphene oxide supramolecular structure

Here we investigated the chitosan (CS)–graphene oxide (GO) supramolecular scaffold and the significant synergistic effect of GO and carbon nanotubes (CNTs) in the structure. To this end, a supramolecular hydrogel was prepared by fulfilling the conditions for intermolecular self-assembly between GO n...

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Bibliographic Details
Published in:Journal of polymer research 2022-05, Vol.29 (5), Article 211
Main Authors: Falamarzpour, Pouria, Ghaffarian Anbaran, Seyed Reza
Format: Article
Language:English
Subjects:
Analysis
Artificial muscles
Biomedical engineering
Biosensors
Carbon nanotubes
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Chitosan
Diffraction
Electric properties
Electrical conductivity
Electrical resistivity
Field emission microscopy
Field emission spectroscopy
Fourier transforms
Graphene
Graphite
Hydrogels
Industrial Chemistry/Chemical Engineering
Infrared analysis
Infrared reflection
Infrared spectroscopy
Nanoparticles
Nanotubes
Original Paper
Polymer Sciences
Scaffolds
Self-assembly
Synergistic effect
Thermal analysis
Tissue engineering
X-rays
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Summary:Here we investigated the chitosan (CS)–graphene oxide (GO) supramolecular scaffold and the significant synergistic effect of GO and carbon nanotubes (CNTs) in the structure. To this end, a supramolecular hydrogel was prepared by fulfilling the conditions for intermolecular self-assembly between GO nanosheets and CS chains. Also, CS-wrapped CNTs were incorporated into the system to induce electrical conductivity. Then, the structure was developed to a macroporous scaffold through subsequent lyophilization. The formed architectures were characterized by using dynamic mechanical thermal analysis (DMTA), attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR), field emission scanning electron microscopy (FE-SEM), and wide angle X-ray diffraction (XRD). The results indicated that the combination of CNTs and GO nanoparticles has a synergistic effect on the distribution and performance of the two nanoparticles. Due to the amphiphilic nature of CS, the presence of each of the nanoparticles improves the interaction of CS with the other, resulted in improving their dispersion into the biopolymeric matrix. Supramolecular properties, convenience and ease of preparation of the scaffolds make them suitable for applications such as biomedical engineering, biosensors, and artificial muscle, especially for cardiac tissue engineering due to their electrical conductivity and high porosity.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-022-03043-0