Fig. 3.
Mechanical properties of PLLA and PNA-doped nanofibrous membranes: (a) tensile curves and (b) Young's modulus at different PNA doping concentrations; (c) FTIR spectra of PNA nanogels, as well as PLLA and PNA-dopped nanofibrous membranes; (d) The effect of PNA nanogel amount on the water contact angles of PNA-doped nanofibrous membranes. Data are represented as mean ± SD (n = 3).