2.5. In vitro biomineralization and biodegradable of PVABG/ChiCol composite scaffolds
To study the bioactive behavior of PVABG/ChiCol composite scaffolds, each of the prepared powders was pressed in pellet (with diameter of ~1.3 cm and ~2.5 mm in thickness) and soaked in a simulated body fluid (SBF) for 7 days. The SBF solution we used is one of the more extensively used ones (See ref. [31]). It contains the following chemicals: NaCl (136.8 mM), NaHCO3 (4.2 mM), KCl (3.0 mM),