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. Author manuscript; available in PMC: 2020 Dec 1.
Published in final edited form as: Mater Sci Eng C Mater Biol Appl. 2019 Aug 16;105:110096. doi: 10.1016/j.msec.2019.110096

Figure 1.

Figure 1.

Schematic diagram showing mechanism of action involving the release kinetics of vitamin C from polymer-coated β-TCP scaffolds. Once the proton gets removed from the vinyl alcoholic group, the negative charge on the oxygen gets delocalized and moves to the carbonyl oxygen. This resonance structure stabilizes the conjugate base [34].