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. 2021 Feb 13;12(2):195. doi: 10.3390/mi12020195

Figure 5.

Figure 5

In vitro degradation of printed constructs. (a) Weight loss (%) of two samples in cell culture media containing Dulbecco’s modified Eagle’s medium (DMEM) with 10% fetal bovine serum (FBS) over a month. (b) The compressive modulus of samples (l × w × h = 10 × 10 × 2 mm) was compared with the time of exposure to the cell culture media for 5-day periods up to one month. Inlet: a representative image of a sample undergoing a compression test by a dynamic mechanical analyzer (DMA). Statistical differences were calculated by one-way ANOVA test for multiple comparisons (p < 0.0001). (c) Pictorial representative images of washed and freeze-dried samples after withdrawal from the media in 5 days period. Error bars represent the standard deviation of 3 independent measurements. Scanning electron microscope (SEM) images of freeze-dried (d) 2A4CNC on day 0, (e) 2A4CNC after 10-day degradation, (f) 4A1CNF on day 0, and (g) 4A1CNF after 10-day degradation.