Cellular Biocompatibility and Biomechanical Properties of N-carboxyethylchitosan/nanohydroxyapatite Composites for Tissue-engineered Trachea

Figures & data

Figure 1. Ultrastructure of NCECS/nHA composite material (SEM, × 50).

Table 1. Biomechanical properties of NCECS/nHA composites

	Dry state		Wet state
Specimen	Tensile strength (MPa)	Elongation to break (%)	Tensile strength (MPa)
NCECS	31.5 ± 2.8	3.37 ± 0.17	5.9 ± 0.56
NCECS/nHA	51.2 ± 2.05	4.23 ± 0.12	10.7 ± 1.1

Figure 2. Tracheal chondrocyte adhesion rates of each group.

Figure 3. Tracheal chondrocyte proliferation curves of each group.

Figure 4. Scanning electron microscopic images of tracheal chondrocytes after 9 days of culture (× 250): (A) control group; (B) NCECS group; (C) NCECS/nHA group.