Research Article
A Facile Approach for the Mass Production of Submicro/Micro Poly (Lactic Acid) Fibrous Mats and Their Cytotoxicity Test towards Neural Stem Cells
Table 4
PLA solution properties of different concentrations in single and binary-solvent systems.
| | Polymer solution concentration | Solvent type | Viscosity (mpa s) | Surface tension (mN/m) | Conductivity (µS cm−1) |
| | 3% | DCM | 5.3 ± 0.1 | 27.4 ± 0.3 | negligible | | 7% | 26.5 ± 0.2 | 30.2 ± 1.5 |
| | 3% | Chloroform | 11.8 ± 0.4 | 26.7 ± 0.6 | negligible | | 7% | 86 ± 0.7 | 27.7 ± 0.3 |
| | 3% | DCM/chloroform | 6.3 ± 0.1 | 28.2 ± 0.4 | negligible | | 7% | 44.8 ± 0.1 | 28.9 ± 0.2 |
| | 7.7% | DCM/TFA | 52.9 ± 0.1 | 19.6 ± 0.5 | 2.3 ± 0.2 | | 10% | DCM/TFA | 77.2 ± 0.2 | 19.9 ± 0.5 |
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