The results showed that PELA is a new biodegradable copolymer.

With autologous cells and biodegradable copolymer scaffold, some laboratory had been created autologous pulmonary valve leaflets and pulmonary artery, but seldom successful reports in aortic systemic.

Multifunctional copolymer water treatment agent is most widely used; multifunctional, efficient and biodegradable green agents will be the research trends in future.