| 吴艳1 米方林1 张玉梅2 王勤涛2.PIII 改性ePTFE 膜对细菌生存状态的影响研究[J].,2012,12(24):4647-4650 |
| PIII 改性ePTFE 膜对细菌生存状态的影响研究 |
| Surface Modification of Expanded Polytetrafluoroethylene Membrane byOxygen Plasma Immersion Ion Implantation and its Survival Condition |
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| DOI： |
| 中文关键词: 等离子浸没离子注入（PIII） 膨体聚四氟乙烯 生物膜 |
| 英文关键词: Plasma Immersion Ion Implantation(PIII) Expanded polytetrafluoroethylene Biofilm |
| 基金项目: |
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| 中文摘要: |
| 目的：探讨等离子注入技术（Plasma immersion ion implantation ，PIII）对膨体聚四氟乙烯（ePTFE）膜改性后表面性能以及对
细菌生存状态的影响。方法：采用氧等离子注入技术（PIII）对ePTFE 膜表面处理，获得改性ePTFE 膜，利用扫描电镜（SEM）观察
改性ePTFE 膜和未处理膜的表面形貌，体外培养变形链球菌，观察改性前后各组膜作体外细菌生存状态变化。结果：与未处理
ePTFE 膜相比，改性ePTFE 膜表面形貌、亲水性发生改变。荧光染色后观察长脉冲组表面的细菌最少；短脉冲组膜表面粘附的细
菌密集，形成生物膜；空白组可见少量死菌和活菌粘附于ePTFE 膜上。结论：长脉冲PIII 改性ePTFE 膜后有良好的抗细菌粘附能
力。 |
| 英文摘要: |
| Objective: The study aimed at the surface modification of oral biomaterials(expanded polytetrafluoro-ethylene, ePTFE)
by means of oxygen plasma immersion ion implantation (PIII) and evaluating its survival condition. Methods: PIII had been used to modify
the surface of ePTFE membrane, and the modified ePTFE samples were investigtaied by scanning electron microscopy(SEM). Its survival
condition to the modified ePTFE was studied. Results: It revealed that PIII changed surface morphology and water contact angle of
ePTFE. The bacteria survival condition indicated that after fluorescence-labeling, less bacteria in long pulse PIII ePTFE, and more bacteria
in short pulse PIII ePTFE and virgin samples. Conclusion: It manifested that long pulse PIII treated ePTFE significantly reduced the
bacterial adhesion in vitro. |
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