CAJ | 학술논문

目的：观察钴铬合金含银抗菌涂层的表面特征和抗菌性能。方法：利用真空等离子喷涂方式在铸造钴铬合金表面制备含银抗菌涂层，通过扫描电镜、能谱分析和X射线衍射分析涂层的表面性能。以常规铸造的钴铬合金试件作为对照组，含银抗菌涂层铸造钴铬合金为实验组，选用贴膜法和荧光显微镜分析法比较2组试件对变形链球菌和白色念珠菌的抗菌性能和抗黏附性能。结果：涂层表面结构均匀致密，与基底材料间未见明显间隙，表层主要物相为Ag、Cr和少量Ag2 O、Cr2 O3。抗菌结果显示，实验组2种菌的菌落数明显少于对照组菌落数（P＜0．05），细菌黏附性明显低于对照组。结论：涂银钴铬合金涂层性能稳定，具有较好的抗菌性能和抗黏附性能。
목적：관찰고락합금함은항균도층적표면특정화항균성능。방법：이용진공등리자분도방식재주조고락합금표면제비함은항균도층，통과소묘전경、능보분석화X사선연사분석도층적표면성능。이상규주조적고락합금시건작위대조조，함은항균도층주조고락합금위실험조，선용첩막법화형광현미경분석법비교2조시건대변형련구균화백색념주균적항균성능화항점부성능。결과：도층표면결구균균치밀，여기저재료간미견명현간극，표층주요물상위Ag、Cr화소량Ag2 O、Cr2 O3。항균결과현시，실험조2충균적균락수명현소우대조조균락수（P＜0．05），세균점부성명현저우대조조。결론：도은고락합금도층성능은정，구유교호적항균성능화항점부성능。
Objective:To study the surface structure and antibacterial property of Ag-containing coating(AgCC)on casting cobalt chromium alloy(Co-Cr).Methods:Plasma spraying technique was adopted to prepare AgCC on Co-Cr.Scanning electron microsco-py,energy dispersive analysis and X-ray diffraction analysis were used to evaluate the surface properties.The antibacterial effects of AgCC against staphylococcus aureus and candida albicans were examined by film attachment method.Fluorescence microscope was a-dopted to evaluate the bacteria adhesion property.Results:AgCC surface was uniform and compact,combined perfectly with sub-strate material.The content of the surface was mainly Ag,Cr and a small amount of Ag2 O and Cr2 O3 .The results of antibacterial as-say showed that on AgCC the number of bacterial colony was fewer(P<0.05)and bacterial adhesion was less than those on Co-Cr(P<0.05).Conclusion:AgCC surface was stable and has antibacterial property.