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. 2020 Jan 31;5(5):2133–2147. doi: 10.1021/acsomega.9b02832

Figure 1.

Figure 1

Engineered design of the trilayered asymmetric porous biocomposite scaffold. (1) Hypothesized design. (2) Cross section of the fabricated asymmetrical scaffold. (1A) Normal human skin layers. (1B) Upper layer consists of a porous nanofibrous sheet with an average thickness of 0.1 mm. (1C) Lower layer constitutes a xerogel mat with an average thickness of 0.2 mm. (1D) Middle fibrin glue layer (0.1 mm). (2A) and (2B) Cross sections of the complete scaffold layers at two different regions from the tested sample under the scanning electron microscopy (SEM). (2C) Individual cross section of the produced lower xerogel layer. (2D) Upper surface of the nanofiber (NF) layer.