Table 1.
The elemental compositions of unmodified and modified HA/P66 substrates analyzed by XPS and expressed as atomic concentration in percentage
| Element | C | N | Ca | P | O | Others |
|---|---|---|---|---|---|---|
| HA/P66 | 75.7 | 7.7 | 0.1 | 0.4 | 13.8 | 2.2 |
| PDA-HA/P66 | 70.9 | 8.4 | 0 | 0 | 18.3 | 2.4 |
| HA-PDA-HA/P66 | 35.2 | 0.8 | 11.8 | 10.7 | 41.6 | 0 |
Abbreviations: HA/P66, hydroxyapatite/polyamide 66; PDA, polydopamine; XPS, X-ray photoelectron spectroscopy; PDA-HA/P66, polydopamine coating on hydroxyapatite/polyamide 66; HA-PDA-HA/P66, hydroxyapatite coating formation on hydroxyapatite/polyamide 66 assisted by polydopamine.