A New Method for Dispersing Pristine Carbon Nanotubes Using Regularly Arranged S-Layer Proteins
Abstract
:1. Introduction
2. Materials and Methods
2.1. Production of Wild-Type and Recombinant S-Layer Protein Solutions
2.2. Coating of Pristine and Oxidized Multi-Walled Carbon Nanotubes (MWNTs)
2.3. Coating of Graphene Sheets with S-Layer Protein SbpA
2.4. Silicification of SbpA-Coated MWNTs
2.5. Transmission Electron Microscopy (TEM)
2.6. Atomic Force Microscopy (AFM)
2.7. Zeta-Potential Measurements of rSbpA-Coated MWNTs
3. Results and Discussion
3.1. Reassembly of SbpA and SbsB S-Layer Protein on Pristine MWNTs
3.2. Reassembly of SbpA S-Layer Protein on Graphene
3.3. Zeta-Potential Measurements of SbpA S-Layer Protein-Coated MWNTs
3.4. Silicification of SbpA S-Layer Protein-Coated MWNTs
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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S-Layer Protein | Bacterial Strain | S-Layer Lattice Symmetry | Lattice Parameters |
---|---|---|---|
SbpA | L. sphaericus CCM2177 | square (p4) | a = b = 13.1 nm, d = 9 nm base angle γ = 90° |
SbsB | G. stearothermophilus PV72/p2 | oblique (p1) | a = 10.4 nm, b = 7.9 nm, d = 4.5 nm base angle γ = 81° |
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Breitwieser, A.; Sleytr, U.B.; Pum, D. A New Method for Dispersing Pristine Carbon Nanotubes Using Regularly Arranged S-Layer Proteins. Nanomaterials 2021, 11, 1346. https://doi.org/10.3390/nano11051346
Breitwieser A, Sleytr UB, Pum D. A New Method for Dispersing Pristine Carbon Nanotubes Using Regularly Arranged S-Layer Proteins. Nanomaterials. 2021; 11(5):1346. https://doi.org/10.3390/nano11051346
Chicago/Turabian StyleBreitwieser, Andreas, Uwe B. Sleytr, and Dietmar Pum. 2021. "A New Method for Dispersing Pristine Carbon Nanotubes Using Regularly Arranged S-Layer Proteins" Nanomaterials 11, no. 5: 1346. https://doi.org/10.3390/nano11051346