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Comparison of the different nanoindentation analysis methods.
| PHEMA–co-EGDMA, method/value | Maxwell–Wiechert, ke (kPa) | Oliver–Pharr, E (kPa) | Ebenstein, et al., EJKR (kPa) | Gupta, et al., EJKR (kPa) |
|---|---|---|---|---|
| 1.3% (n = 15) | 342 ± 96 | 355 ± 47 | 818 ± 87a | 671 ± 81b |
| 1.6% (n = 15) | 586 ± 122 | 505 ± 54 | 1221 ± 186a | 966 ± 183b |
| 1.9% (n = 13) | 897 ± 107 | 712 ± 61 | 1446 ± 101a | 1553 ± 187b |
| 2.3% (n = 10) | 1044 ± 99 | 751 ± 44 | 1565 ± 400 | 1597 ± 87 |
p value <5 × 10−3.
p value <5 × 10−6.
