PGA

Polyglycolic acid (PGA) is a linear aliphatic polyester synthesized from glycolic acid monomers, characterized by a highly crystalline structure that provides strong mechanical performance and rapid biodegradation. It is widely used in biomedical applications—particularly surgical sutures, bone fixation devices, and tissue engineering scaffolds—where its ability to degrade predictably within the body while maintaining initial strength is critical. Engineers select PGA over conventional polymers when temporary mechanical support combined with biocompatibility is essential, though its relatively fast degradation rate and brittleness compared to co-polymers like PGLA limit its use in applications requiring extended load-bearing duration.