Fig. 4From: Preparation of bilayer tissue-engineered polyurethane/poly-L-lactic acid nerve conduits and their in vitro characterization for use in peripheral nerve regenerationAverage water contact angle of the electrospun (A) PLA, (B) PU, and (C) PU/MWCNT nanofibrous mats. The addition of MWCNTs enhanced the hydrophilicity of PU nanofibers. Data are reported as mean SD, n = 3 (***p < 0.001, **p < 0.01)Back to article page