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X-ray photoelectron spectroscopy analysis of the surface composition of nanofibrous membranes
| Membrane | Atomic percentage
|
|||
|---|---|---|---|---|
| C | N | O | Na | |
| PCL | 87.80 | 0 | 12.20 | 0 |
| PCL-NH2 | 77.89 | 0.74 | 21.37 | 0 |
| PCL-g-HA | 74.95 | 2.68 | 22.13 | 0.25 |
Abbreviations: PCL-g-HA, hyaluronic acid-grafted poly(caprolactone); PCL-NH2, aminolyzed PCL; PCL, poly(caprolactone).
