Free-Form Rapid Prototyped Porous PDMS Scaffolds Incorporating Growth Factors Promote Chondrogenesis

Table 1

Results’ summary from the mechanical characterization tests of the PDMS sponges obtained and comparative data from other porous polymers and natural soft tissues.

Porous PDMS and tissues	Tensile strength (MPa)	Young modulus (MPa)	Density (g/cm^3)
Probe I	0.88	2.77	0.96
Probe II	0.71	3.70	0.82
Probe III	0.59	2.47	0.79
Probe IV	0.45	1.47	0.65
Probe 1	1.15	1.64	0.64
Probe 2	0.65	0.72	0.75
PolyHIPE [39]	0.17	0.88	0.15
Skin [40]	10	40	1.09
Pericardium [41]	25.8	156	1.8
Tendon [40]	80	1000	1.2
Carotid artery [40]	0.8	0.97	1.3
Aorta artery [40]	0.9	6.5	1.39
Esophagus [42]	0.5	6	1.18
Parenchyma [43]	0.6	5	0.87
Cartilage [44]	10–30	0.45–0.9	1.05–1.2