Research Article
In Situ Swelling Behavior of Chitosan-Polygalacturonic Acid/Hydroxyapatite Nanocomposites in Cell Culture Media
Table 2
Band assignment of dry and soaked Chi-PgA-HAP films for 1660–1240
regions.
| Band assignment | Band position as per the soaking conditions | Dry | 1 day | 2 days | 8 days | 24-day | 48-day |
| Amide I | 1666 | 1665 | | 1666 | 1665 | 1665 | Asymmetric COO- stretching | 1622 | 1605 | 1624 | 1604 | 1605 | 1603 | NH3+ deformation | 1534 | 1532 | 1534 | 1533 | 1534 | 1539 | symmetric COO- stretching | 1414 | 1417 | 1418 | 1420 | 1416 | 1421 | C–H bending vibration of ring | 1330 | 1331 | 1329 | 1328 | 1332 | 1336 | 1242 | 1245 | 1237 | 1244 | 1243 | 1246 |
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