approved by Food and Drug Administration (FDA), is that of aliphatic polyester, including poly (lactic acid) (PLA), poly (glycolic acid) (PLGA) and their copolymers. Due to its good mechanical properties,
like biocompatibility, biodegradation, excellent thermal/mechanical properties and superior transparency of thesematerials (Tzong-Ming & Cheng-Yang, 2006; Yan et al., 2009)they have been widely used in surgical sutures, drug delivery systems and tissue engineering (Rahul, Amol, & Douglas,2010)