http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Direct-Current Treatment as a Safe Sterilization Method for Electrospun Biodegradable Polymer
HyeLeeKim,JeongHyunLee,MiHeeLee,HakHeeKim,JungsungKim,InhoHan,BongJooPark,JeongKooKim,DongWookHan,SooHyunKim,SeungJinLee,JongChulPark 한국조직공학·재생의학회 2011 조직공학과 재생의학 Vol.8 No.3
Sterilization is an essential process for biodegradable polymers to be used as biomaterials or tissue engi-neered-scaffolds. The characteristics of biodegradable scaffolds can change due to decomposition of constituentpolymers due to high temperature, pressure, or moisture during sterilization. This study investigated direct-current (DC) treatment as a safe method that can prevent structural change and deformation. Treatment of electrospun poly (lactic-co-glycolic acid) (PLGA) with DC showed a bactericidal effect within 40 sec at 4 V. When DC was appliedat 6 V to the electrospun PLGA, the bactericidal effect emerged within 30 sec. The morphology of fibers and molec-ular weight of PLGA polymer was maintained after DC treatment. In contrast, electrospun PLGA exposed to ethyl-ene oxide showed fiber degradation, and gamma or e-beam irradiation resulted in decreased molecular weight. Thedemonstrated improvement in chemical and physical stability of biodegradable polymers after DC sterilization mayhelp extend their application.