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cardiovascular biomaterials
相关语句
  生物材料
     Study on Influence of SspA on Bacterial Biofilm to Thoracic and Cardiovascular Biomaterials in Vitro
     SspA对胸心血管外科生物材料细菌生物膜形成影响的研究
短句来源
     STUDY OF HUMAN PLASMA PROTEINS ON BACTERIAL ADHESION TO CARDIOVASCULAR BIOMATERIALS
     血浆蛋白对心血管生物材料细菌粘附影响的研究
短句来源
     Objective To observe the influences of human serum albumin (HSA) on bacterial adhesion to cardiovascular biomaterials of Dacron and polytetrafluoroethylene (PTFE) and provide an effective method for preventing infection of implanted biomaterial.
     目的 观察人血清白蛋白 (HSA)对涤纶 (Dacron)和膨体聚四氟乙烯 (PTFE)细菌黏附的影响 ,探讨其在心血管生物材料细菌黏附中的作用 ,为临床防治心血管生物材料植入后感染提供有效的方法。
短句来源
     The effect of human serum albumin on bacterial adhesion to cardiovascular biomaterials in vitro
     人血清白蛋白在体外心血管生物材料细菌黏附中的作用
短句来源
     Conclusion Cardiovascular biomaterials coated in HSA can effectively inhibit some bacterial adhesion to cardiovascular biomaterials.
     结论 用 HSA预处理心血管生物材料可抑制某些细菌的黏附。
短句来源
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  心血管生物材料
     The effect of human serum albumin on bacterial adhesion to cardiovascular biomaterials in vitro
     人血清白蛋白在体外心血管生物材料细菌黏附中的作用
短句来源
     STUDY OF HUMAN PLASMA PROTEINS ON BACTERIAL ADHESION TO CARDIOVASCULAR BIOMATERIALS
     血浆蛋白对心血管生物材料细菌粘附影响的研究
短句来源
     We observe that bacterial biofilm forming on cardiovascular biomaterials in vitro. So this trial could provide a novel method for anti-bacterial adhesion, and prevent the rate of biomaterial centered infection. Methods: We observe the BF formation of Staphylococcus aureus (SA) and Staphylococcus epidermidis (SE) in the bacterial adhesive trial in vitro, by using scanning electron microscopy (SEM) and Spectrophotometric method for the optical densities (ODs) of adherent biofilm.
     目的:观察葡萄球菌在心血管生物材料表面的粘附、细菌生物膜(bacterial biofilm,BF)的形成,探讨了细菌粘附和细菌生物膜的形成机理,探讨了以生物材料为中心感染(biomaterial centered infection,BCI)中细菌生物膜的致病机制,为研究新型的抗细菌粘附材料和阻断细菌生物膜形成提供帮助。
短句来源
     Objective To observe the influences of human serum albumin (HSA) on bacterial adhesion to cardiovascular biomaterials of Dacron and polytetrafluoroethylene (PTFE) and provide an effective method for preventing infection of implanted biomaterial.
     目的 观察人血清白蛋白 (HSA)对涤纶 (Dacron)和膨体聚四氟乙烯 (PTFE)细菌黏附的影响 ,探讨其在心血管生物材料细菌黏附中的作用 ,为临床防治心血管生物材料植入后感染提供有效的方法。
短句来源
     Conclusion Cardiovascular biomaterials coated in HSA can effectively inhibit some bacterial adhesion to cardiovascular biomaterials.
     结论 用 HSA预处理心血管生物材料可抑制某些细菌的黏附。
短句来源
  “cardiovascular biomaterials”译为未确定词的双语例句
     Accordingly, surface modification is regarded as a significant means to improve the thromboresistance of cardiovascular biomaterials. To thoroughly study the interfacial interaction between biomaterial surface and blood and ulteriorly recognize the surface modification mechanism of anti-coagulation materials are a greatly arduous task for researchers.
     因此,表面工程被视为改善材料抗凝血性能的重要方向,深入了解材料表面与血液之间界面作用行为和建立抗凝血表面改性机制的认识是研究者的重要任务。
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Objective To observe the influences of human serum albumin (HSA) on bacterial adhesion to cardiovascular biomaterials of Dacron and polytetrafluoroethylene (PTFE) and provide an effective method for preventing infection of implanted biomaterial. Methods According to various pretreating methods, biomaterials were divided into two groups.Trial group: Dacron and PTFE were preincubated in HSA, control group: Dacron and PTFE were preincubated in physiological saline solution. Staphylococcus aureus...

Objective To observe the influences of human serum albumin (HSA) on bacterial adhesion to cardiovascular biomaterials of Dacron and polytetrafluoroethylene (PTFE) and provide an effective method for preventing infection of implanted biomaterial. Methods According to various pretreating methods, biomaterials were divided into two groups.Trial group: Dacron and PTFE were preincubated in HSA, control group: Dacron and PTFE were preincubated in physiological saline solution. Staphylococcus aureus and Staphylococcus epidermidis were radiolabeled with tritiated thymidine (3H-TDR), and then started the experiment of bacterial adhesion to Dacron and PTFE in vitro. The radioactivity associated with segments was measured with beta liquid scintillation counting(β-LSC). Scanning electron microscopy (SEM) was also used to observe the phenomenon of bacterial adhesion to biomaterials. Results Compared with control group, segments of Dacron and PTFE coated in HSA decreased the binding of Staphylococcus aureus and Staphylococcus epidermidis to both Dacron and PTFE in trial group (P<0.05). Conclusion Cardiovascular biomaterials coated in HSA can effectively inhibit some bacterial adhesion to cardiovascular biomaterials.

目的 观察人血清白蛋白 (HSA)对涤纶 (Dacron)和膨体聚四氟乙烯 (PTFE)细菌黏附的影响 ,探讨其在心血管生物材料细菌黏附中的作用 ,为临床防治心血管生物材料植入后感染提供有效的方法。 方法 根据生物材料处理的方式不同分为两组 ,实验组 :用 HSA预处理涤纶和 PTFE;对照组 :用生理盐水预处理。使用 3H-胸腺嘧啶脱氧核苷 (3H- TDR)标记的金黄色葡萄球菌、表皮葡萄球菌 ,对两组的涤纶和 PTFE进行动态细菌黏附实验 ,使用β-液闪测量仪 (β- L SC)、扫描电子显微镜 (SEM)观察材料上细菌黏附情况。 结果 实验组金黄色葡萄球菌和表皮葡萄球菌对涤纶和 PTFE的黏附均较对照组少 (P<0 .0 5 )。 结论 用 HSA预处理心血管生物材料可抑制某些细菌的黏附。

Objective:The study aimed at the surface modification of cardiovascular biomaterials (Dacron) by means of Acetylene and argon (C 2H 2+Ar) plasma immersion ion implantation (PIII) and its adhesive ability with different kind of pathogenic bacterials. method: The bacterial adhesion to the modified dacron was studied quantitatively by the plate counting and Gamma-ray counting of 125 I radiolabeled 5 kinds of bacterials in vitro. result:it revealed that PIII improved water wettability,increase surface...

Objective:The study aimed at the surface modification of cardiovascular biomaterials (Dacron) by means of Acetylene and argon (C 2H 2+Ar) plasma immersion ion implantation (PIII) and its adhesive ability with different kind of pathogenic bacterials. method: The bacterial adhesion to the modified dacron was studied quantitatively by the plate counting and Gamma-ray counting of 125 I radiolabeled 5 kinds of bacterials in vitro. result:it revealed that PIII improved water wettability,increase surface energy,decreased the water contact angle of dacron.The bacterial counting and gamma-ray counting of 125 I-radiolabeled bacteria in vitro indicated that bacterials adhesion on dacron was reduced by C 2H 2+Ar implantation at suitable energy level.Furthermore,it showed that amorphous carbon structure appears after C 2H 2 implantation.Conclusion:this suggests that the improvement of water wetability of the modified dacron might come from the destruction of original Surface chemical bond and formation of an amorphous carbonphase by PIII.It manifested that the composition change of the modified surface layer can cause the improvement of the bacterial adhesion.

目的 :对最常用心脏血管替代材料涤纶片作最新发展的具有全方位表面改性特征的混合等离子体浸没注入 ,以观察经处理后的涤纶片抑制细菌粘附的效果。方法 :用多功能全方位等离子体浸没及离子注入机 (PIII) ,用射频电源建立气体等离子体 ,对涤纶材料作全方位乙炔和氩气混合离子 (C2 H+ Ar)注入获取表面改性涤纶片。用金黄色葡萄球菌 ,表皮葡萄球菌 ,大肠杆菌 ,绿脓杆菌 ,白色念珠菌制取细菌悬液并作 5 12 5Ⅰ 2′ 脱氧尿嘧啶核苷 (12 5Ⅰ UDR)标记 ,再对改性涤纶材料作体外细菌动态粘附实验。结果 :表面改性涤纶材料改变了亲水性和表面能 ,降低了水分子接触角。与未改性材料相比 ,改性涤纶材料抗细菌粘附能力有较明显提高。结论 :混合离子 (C2 H2 +Ar)表面改性涤纶片有良好的抗细菌和血小板粘附能力。

Objective To observe the influence of human plasma proteins on staphylococcus aureus and staphylococcus epidermidin adhesion to cardiovascular biomaterials, Some plasma proteins of anti- bacterial adhesion were chosen to treat with cardiovascular biomaterials. It will provide an effective method for preventing the rate of Biomaterial Center Infect(BCI). Methods There were 5 groups in the experiment:4 tested groups,and 1 control group. Staphylococcus aureus and staphylococcus epidermidis were radiolabeled...

Objective To observe the influence of human plasma proteins on staphylococcus aureus and staphylococcus epidermidin adhesion to cardiovascular biomaterials, Some plasma proteins of anti- bacterial adhesion were chosen to treat with cardiovascular biomaterials. It will provide an effective method for preventing the rate of Biomaterial Center Infect(BCI). Methods There were 5 groups in the experiment:4 tested groups,and 1 control group. Staphylococcus aureus and staphylococcus epidermidis were radiolabeled by 3 H - TDR and segments of Dacron and PTFE were preincubated for in plasma proteins and in normal saline and then the adhesive experiment of bacterial adhesion to Dacron and PTFE in vitro was performed. The radioactivity associated with segments was measured with Beta Liquid Scintillation Counting(β - LSC). Scanning electron microscopy(SEM) was used to observe the phenomenon of bacterial adhesion to biomaterials. Results Compared with control group, segments of Dacron and PTFE coated in Albumin can decrease the binding of Staphylococcus aureus and staphylococcus epidermidis both to Dacron and PTFE(P<0.05). Fibrinogen enhanced the binding of Staphylo-coccfus aureus both to Dacron and PTFE and decreased attachment of staphylococcrs epidemidis to Dacron(P<0.05). Fibronectin promoted the binding of Staphylococcrs aureus to Dacron and decreased attachment of staphylococcus epidermidis both to Dacron and PTFE(P<0.05). Conclusion The influence of various plasma proteins on bacterial adhesions to biomaterials and others can decrease bacterial adhesion. The special cardiovascular biomaterial coated in proper selected plasma proteins can decrease the rate of BCI in clinical.

目的观察人体血浆蛋白对心血管生物材料细菌粘附的不同影响。筛选出抗细菌粘附力强的血浆蛋白预处理生物材料,为临床防治以生物材料为中心感染提供有效方法。方法 实验分5组,4个实验组和1个对照组。用3H-胸腺嘧啶脱氧核苷标记金黄色葡萄球菌(SA)、表皮葡萄球菌(SE),用四种血浆蛋白和生理盐水(对照组)预处理材料涤纶(Dacron)、膨体聚四氟乙稀(PTFE)。然后各组进行细菌与材料动态粘附实验。使用β-液闪测量仪(β—LSC),同时结合扫描电镜(SEM),观察实验材料上细菌粘附情况。结果 实验组与对照组比较,白蛋白能减少SA和SE对Dacron和PTFE的粘附(P<0.05);纤维蛋白原能增加SA对Dacron和PTFE的粘附,减少SE对Dacron粘附(P<0.05);纤雄连接蛋白增加sA对Dacron粘附,减少SE对Dacron和盯PTFE的粘附(P<0.05)。结论不同血浆蛋白对心血管生物材料细菌粘附有不同影响,有的血浆蛋白促进细菌粘附,有的抑制细菌粘附,适当的血浆蛋白预处理心血管生物材料,可能减少生物材料为中心感染(BCI)的发生率。

 
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