Capsule shells ua los ntawm cov khoom siv ntuj tsim tau zoo biodegradability thiab biocompatibility, yooj yim decomposing hauv cov hnyuv yam tsis muaj teeb meem kev noj qab haus huv. Txawm li cas los xij, cov plhaub no muaj cov kua qaub tsis zoo thiab alkali tsis kam thiab kub tsis kam, ua rau lawv tsis haum rau siab - kub, siab - av noo, thiab acidic / alkaline ib puag ncig.
Capsule shells ua los ntawm chemically synthesized los yog semi-synthetic cov ntaub ntawv muaj cov kua qaub thiab alkali tsis kam, siab -kub tsis kam, siab -humidity resistance, thiab tshav kub- sealing zog, ua rau lawv siv nyob rau hauv ntau yam kev siv. Txawm li cas los xij, biocompatibility thiab biodegradability ntawm cov ntaub ntawv no tsis tau lees paub tag nrho.
