Ingabe i-PLA Biodegradable?
•I-Polylactic acid, eyaziwa nangokuthi i-PLA, isineminyaka eminingi ikhona. Kodwa-ke, abakhiqizi abakhulu be-PLA basanda kungena emakethe ngemuva kokuthola uxhaso ezinkampanini ezinkulu ezizimisele ngokushintsha amapulasitiki okwenziwa. Ngakho-ke, ingabe i-PLA iyabola?
•Yize impendulo ingelula, sinqume ukunikeza incazelo futhi sincoma ukuthi kuqhutshekwe nokufunda kulabo abanentshisekelo. I-PLA ayiboli, kodwa yonakala. Ama-enzyme angakwazi ukudiliza i-PLA awavamile ukutholakala endaweni ezungezile. I-Proteinase K iyi-enzyme eyenza ukuwohloka kwe-PLA nge-hydrolysis. Abacwaningi abanjengoWilliams ngo-1981 kanye noTsuji noMiyauchi ngo-2001 bahlola udaba lokuthi i-PLA iyakwazi ukubola. Imiphumela yabo kuxoxwa ngayo encwadini ethi Biomaterials Science: An Introduction to Medical Materials futhi yethulwa emhlanganweni we-European Biomaterials Society. Ngokwale mithombo, i-PLA ilawulwa ngokuyinhloko nge-hydrolysis, ngaphandle kwanoma yimaphi ama-biologic agents. Nakuba abantu abaningi bengase bacabange ukuthi i-PLA iyakwazi ukubola, kubalulekile ukuqaphela lokhu.
•Eqinisweni, i-hydrolysis ye-PLA nge-proteinase K ayivamile kangangokuthi ayibalulekile ngokwanele ukuba kuxoxwe ngayo kusayensi ye-biomaterial. Sithemba ukuthi lokhu kuzocacisa izingqinamba eziphathelene nokubola kwe-PLA futhi sizoqhubeka nemizamo yethu yokuhlinzeka ngezixazululo ezingcono kakhulu zezidingo zakho zepulasitiki ezingangcolisi imvelo nezibolayo.
In isiphetho:
I-PLA iyipulasitiki ebolayo esetshenziswa kakhulu ezintweni zansuku zonke njengezikhwama nezinkomishi ezilahlwayo. Kodwa-ke, kungonakalisa kuphela endaweni yokwenza umquba wezimboni noma endaweni yokugaya ukudla kwe-anaerobic, okwenza ukonakala ezindaweni ezijwayelekile zemvelo kube inselele. Ucwaningo luye lwaqinisekisa ukuthi i-PLA yehlisa isithunzi kancane endaweni yasolwandle.
Isikhathi sokuthumela: Nov-01-2023
