| AFM | Average length 381.8 nm; thickness (AFM height) 3.7 nm |
|---|---|
| Conductometric titration | Primary amine content 1.7 mmol g⁻¹; degree of deacetylation 32.2 % |
Ibrahim Abousharabia, Negin Vaziri, Arun Torris, Terhi J. Heino, Eero Kontturi, Vishnu Arumughan. “Anisotropic nanochitin hydrogels as biomimetic scaffolds supporting directed osteoblast adhesion and alignment.” ChemRxiv (). https://doi.org/10.26434/chemrxiv.15007819/v2
Values presented only in AFM, SEM-EDX, WAXS, X-ray-tomography, or mechanical-compression plots or images were not transcribed
| Water content, 0.8 % ChNF | STP-Ch 97.84 ± 0.049 %; SPH-Ch 97.85 ± 0.003 % |
|---|---|
| Water content, 1 % ChNF | STP-Ch 98.00 ± 0.006 %; SPH-Ch 97.80 ± 0.002 % |
| Water content, 1.2 % ChNF | STP-Ch 98.10 ± 0.003 %; SPH-Ch 97.93 ± 0.012 % |
| Water content, 1.4 % ChNF | STP-Ch 97.54 ± 0.025 %; SPH-Ch 97.50 ± 0.012 % |
| Water content, 1.6 % ChNF | STP-Ch 96.91 ± 0.005 %; SPH-Ch 96.91 ± 0.046 % |
| WAXS-derived orientation factor, 0.8-L | STP-Ch 0.56; SPH-Ch 0.52 |
| WAXS-derived orientation factor, 1-L | STP-Ch 0.61; SPH-Ch 0.58 |
| WAXS-derived orientation factor, 1.2-T | STP-Ch 0.75; SPH-Ch 0.73 |
| WAXS-derived orientation factor, 1.2L | STP-Ch 0.75; SPH-Ch 0.88 |
| WAXS-derived orientation factor, 1.4-L | STP-Ch 0.70; SPH-Ch 0.60 |
| WAXS-derived orientation factor, 1.6-L | STP-Ch 0.62; SPH-Ch 0.64 |
| SEM-EDX | Crosslinkers were homogeneously distributed throughout the hydrogel matrices |
|---|---|
| SEM, freezing temperature | Freezing at −20 °C produced pore sizes on the order of several hundred micrometers; freezing at −196 °C produced pores in the tens of micrometers range |
| WAXS | Azimuthal integration of the (110) diffraction rings showed distinct intensity peaks at 90° and 270° |
| WAXS-derived peak orientation factor, main-paper narrative | 0.8 for SPH-Ch1.2 % and 0.75 for STP-Ch1.2 % at 1.2 wt. %; orientation decreased above 1.2 wt. % |
| X-ray tomography | Average pore diameters were approximately 142 µm for SPH-Ch1.2 % and 126 µm for STP-Ch1.2 % |