Table 1.
Pearson coefficients of correlation (r) among various physicochemical properties, i.e. G’, concentration of collagen (RGD and MMP), swelling, diffusion, mesh size, and mesh density of the (a) physical crosslinked collagen hydrogel and (b) chemical crosslinked collagen-Ph hydrogel. High correlation (in red): | r |>0.70; medium correlation (in blue): 0.40 <| r |<0.69; low correlation (in black): | r | <0.39.
| (a)Rb-collagen | [RGD], [MMP] | G' | swelling | diffusion | mesh size | mesh density |
|---|---|---|---|---|---|---|
| [RGD], [MMP] | 1 | |||||
| G' | 0.98 | 1 | ||||
| swelling | −0.69 | −0.72 | 1 | |||
| diffusion | −0.68 | −0.55 | 0.93 | 1 | ||
| mesh size | 0.99 | 0.99 | −0.91 | −0.68 | 1 | |
| mesh density | 0.99 | 0.99 | −0.85 | −0.59 | 0.99 | 1 |
| (b) Rb-collagen-Ph | [RGD], [MMP] | G' | swelling | diffusion | pore size | pore density |
|---|---|---|---|---|---|---|
| [RGD], [MMP] | 1 | |||||
| G' | 0.00 | 1 | ||||
| swelling | 0.31 | −0.22 | 1 | |||
| diffusion | −0.76 | −0.23 | −0.49 | 1 | ||
| pore size | 0.20 | −0.69 | 0.68 | −0.30 | 1 | |
| pore density | 0.31 | 0.88 | 0.27 | −0.43 | −0.36 | 1 |