Table 1.

Mechanical characteristics of the grafts based on PLLA microfibers.

Medium	Wall thickness, μm	Tensile strength, МPа	Young's modulus, МPа	Elongation, %
Native rat aorta	150	2.27 ± 0.56	17.3 ± 5.1	139 ± 32
The initial PLLA graft	320	2.64 ± 0.29	27.0 ± 2.8	258 ± 24
PLLA graft thermally treated in the fixed state	250	3.63 ± 0.41	145 ± 11	175 ± 18
PLLA graft thermally treated in the free state	370	2.61 ± 0.36	109 ± 13	96.3 ± 21