Page 507 - IJB-10-3

International Journal of Bioprinting 3D printing microgroove nerve conduits

Figure 5. (a) Mechanical properties of 3 wt% PCL and PCL/PLA films with different thickness showing (i) maximum tensile stress, (ii) Young’s modulus,
and (iii) strain at breaking. (b) Mechanical properties of 20 µm thickness film with different polymer concentration of PCL-10 and PCL/PLA-10 showing
(i) maximum tensile stress, (ii) Young’s modulus, and (iii) strain at breaking.

cell attachment and proliferation and requires engineering more hydrophilic than PCL films. This may be related to
for specific applications. 59 the higher surface roughness of PCL films, the decrease in
surface roughness with the inclusion of PLA in the films
The films showed a significant decrease in water contact (Figure 3a), and the inherently less hydrophobic nature of
angle (WCA) from 0 to 60 s in all groups. The addition of PLA PLA. Additionally, the WCA showed a decreasing trend
60
slightly reduced the WCA; hence, PCL/PLA films became with increasing microgroove size. The flat samples had the

Volume 10 Issue 3 (2024) 499 doi: 10.36922/ijb.2725