Table 1 Characterization of CLP-PEG-MPC hydrogels compared to CLP-PEG only hydrogels, biosynthetic implants currently in patients and the human cornea.

Tensile strength (MPa)

0.022 ± 0.004

0.56 ± 0.21

0.286 ± 0.06¹⁹

3.81 ± 0.40⁴⁸

Elongation (%)

59.50 ± 7.70

49.96 ± 8.10

20.149 ± 7.614¹⁹

N/A

Young’s modulus (MPa)

0.044 ± 0.010

0.150 ± 0.015

1.749 ± 0.782¹⁹

3-13^{49, 50}

Storage modulus (G′) (kPa)

15.15 ± 1.086

22.36 ± 1.489

–

–

Loss modulus (G″) (kPa)

0.1522 ± 0.0569

0.0433 ± 0.006

–

– 

Transmission (%)

29-80(UV) 80-97(Vis)

32-92(UV) 92-99(Vis)

95.1 ± 0.05¹⁹

87.1 ± 2.0 (at 500 nm)⁵¹

Refractive index

1.340 ± 0.005

1.338 ± 0.004

1.3507 ± 0.0011⁵²

1.423–1.436⁵³

Water content (%)

90.94 ± 0.78

92.67 ± 0.85

91.5 ± 0.9¹⁹

78⁵⁴

Residual mass (%) from collagenase Degradation at 48 h

100.17 ± 3.54

96.19 ± 1.89

<10%⁵²

–