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. Author manuscript; available in PMC: 2014 Jan 10.
Published in final edited form as: J Control Release. 2012 Oct 26;165(1):29–37. doi: 10.1016/j.jconrel.2012.10.015

Figure 1.

Figure 1

Structure of poly(α-hydroxy-esters). PLGA has a fraction of functional groups with lactide units and the remaining fraction with glycolide units. n is the number of interior lactide and/or glycolide monomeric units.