Preparation and Bioactivity Properties of a Novel Composite Membrane of Fructose Mediated β-Tricalcium Pyrophosphate/(Polyethylene Glycol/Chitosan) for Guided Tissue Regeneration

Figure 6

Surface morphology of 50 wt% F-β-TCP/CS/PEG composite membranes immerged in the PBS solution containing lysozyme enzyme for 28 days. (a) 0 days; (b) 7 days; (c) 14 days; and (d) 28 days.

(a)

(b)

(c)

(d)