北京大学口腔医学院•口腔医院综合科;国家口腔医学中心;国家口腔疾病临床医学研究中心;口腔数字化医疗技术和材料国家工程实验室;口腔数字医学北京市重点实验室;国家卫生健康委员会口腔医学计算机应用工程技术研究中心;国家药品监督管理局口腔生物材料重点实验室,北京 100081
[ "钱锟,女,博士学历,主治医师,全国卫生产业企业管理协会数字化口腔产业分会委员,中华口腔医学会全科口腔医学专业委员会会员,任职于北京大学口腔医院,2012年博士毕业于北京大学口腔医学院,专长为口腔修复学及口腔多学科疑难病例综合诊治。2014年赴美国罗切斯特大学牙科学院短期参观学习,2017年获得北京大学口腔医院青年岗位能手,2019年获得北京大学医学部优秀住院医师,2020年第四季CEREC好声音全国20强,2021年第七届中华口腔医学会口腔跨学科优秀病例展北京站二等奖,主持及参与多项市级、院级基金项目,发表多篇SCI论文。Email:qiankun19860509@sina.com" ]
纸质出版日期:2023-03-25,
收稿日期:2022-12-10,
修回日期:2023-01-25,
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钱锟.利用低温等离子体对热凝义齿基托树脂的表面改性[J].新兴科学和技术趋势,2023,2(1):28-33.
QIAN Kun.Surface modification of denture base acrylic resin treated by atmospheric pressure cold plasma[J].Emerging Science and Technology,2023,2(1):28-33.
钱锟.利用低温等离子体对热凝义齿基托树脂的表面改性[J].新兴科学和技术趋势,2023,2(1):28-33. DOI: 10.12405/j.issn.2097-1486.2023.01.004.
QIAN Kun.Surface modification of denture base acrylic resin treated by atmospheric pressure cold plasma[J].Emerging Science and Technology,2023,2(1):28-33. DOI: 10.12405/j.issn.2097-1486.2023.01.004.
使用聚甲基丙烯酸甲酯制作样本90个;使用大气压低温等离子体激发装置产生等离子体(工作气体为Ar/O
2
);将样本根据处理距离不同分为5 mm,10 mm,15 mm,20 mm,25 mm,30 mm,40 mm,50 mm,60 mm组。使用接触角测量仪测量处理前后各样本的接触角;使用三维形貌测量显微镜测量样本表面粗糙度值,观测表面形态;利用发射光谱(OES)对等离子体的活性成分进行分析;采用X射线光电子能谱(XPS)分析其表面元素价键改变。经过等离子体处理后,样本表面接触角与处理前相比显著减小(
P<
0.05),材料亲水性改善;处理距离不同,接触角不同(
P
<
0.05);等离子体处理前后材料表面粗糙度和表面形态无明显变化;OES结果显示等离子体活性成分中包含O自由基;XPS分析表明,等离子体处理后材料表面C/O减小。利用低温等离子体的技术有可能成为一种新型义齿基托树脂表面改性方法。
The polymethyl methacrylate (PMMA) specimens (n=90) were prepared. A single electrode non-thermal atmospheric pressure plasma jet (working gas Argon/oxygen)was used to treat the specimens for 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 40 mm, 50 mm, 60 mm, respectively. To determine the hydrophilicity, water contact angles were measured. The surface roughness and topography were measured with 3D laser scanning confocal microscope. Plasma components were analyzed by the optical emission spectroscopy (OES). The chemical composition was monitored by X-ray photoelectron spectroscopy (XPS) analysis.The water contact angle was reduced after treatment (
P<
0.05). Different treatment distance caused different hydrophilic modification (
P<
0.05). There were no significant differences in the roughness values and surface topography among groups.OES shown that the active components of the plasma contain oxygen free radicals. XPS analysis demonstrated a decrease in C/O.Non-thermal atmospheric pressure plasma might possess a good perspective in clinical use of denture base acrylic resin.
低温等离子体热凝义齿基托树脂表面改性
atmospheric pressure cold plasmadenture base acrylic resinsurface modification
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