Table 1. Biodegradation Rate of Bioresorbable Polymers^{129,183−190}.

	biodegradation mechanism	biodegradation rate	test environment	ref
alginate	hydrolysis	20% mass loss after 40 d	phosphate buffered saline (PBS) at 37 °C	(183)
chitosan	hydrolysis	90% mass loss after 1 d	PBS (pH = 7.4) at 37 °C	(184)
gelatin	hydrolysis	68% mass after 15 d	PBS (pH = 7.4) at 37 °C	(185)
PLA	hydrolysis	100% mass loss after 49 wk	Hank’s balanced salt solution (HBSS) at 37 °C	(186)
PGA	hydrolysis	10% mass loss after 3 wk	PBS (pH = 7.4) at 37 °C	(187)
PLGA (PLA/PGA = 50:50)	hydrolysis	80% mass loss after 8 wk	PBS (pH = 7.4) at 37 °C	(188)
PCL	hydrolysis	11% mass loss after 4 wk	0.01 M NaOH solution at 37 °C	(189)
PVA	hydrolysis	90% mass loss after 90 d	PBS at 37 °C	(129)
PHBV	hydrolysis	4% mass loss after 15 wk	PBS (pH = 7.4) at 37 °C	(190)