Biodegradable
Biodegradation txhais tau hais tias cov khoom siv tsis tu ncua tawm ntawm lub cev thaum lub sijhawm cov txheej txheem ntawm cov ntaub so ntswg loj hlob los ntawm kev tawg, enzymatic hydrolysis, thiab cell phagocytosis hauv lub cev. Cov ntaub so ntswg kho tag hloov txoj hauj lwm ntawm cov khoom cog, thiab cov khoom siv tsis muaj cov khoom seem hauv lub cev. xwm.