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Baofeng Cui Ling Zhang Huidi Zhou Junyan Zhang Jianmin Chen 《Surface and interface analysis : SIA》2011,43(11):1377-1381
Self‐assembled poly(amide amine)‐copper (PAMAM/Cu) film on silicon was prepared and investigated by means of contact angle measurement, XPS and atomic force microscopy (AFM). The tribological properties were evaluated using a reciprocal ball‐on‐disc test rig and a lateral force microscope. Results of XPS show the existence of Cu(0) and PAMAM molecule on the surface of the film. Compared with the self‐assembled monolayer of the poly(amide amine) generation 4.0 dendrimer, the friction force of PAMAM/Cu film is lower and the friction coefficient is smaller which can be attributed to the existence of Cu nanoparticles. The PAMAM/Cu film shows a good lubrication effect. The stability of friction and wear resistance of film is improved. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
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压电免疫传感器用于乙肝表面抗原的测定 总被引:6,自引:0,他引:6
乙肝表面抗原 ( HBs Ag)的检测是临床诊断乙型肝炎的一项重要指标 .目前常用酶联免疫法和放射免疫法检测 [1] ,但酶本身性质不稳定且价格昂贵、操作繁琐 ;而放射免疫法存在放射性废物难处理的局限性 .压电免疫传感器具有装置简单、价格便宜、灵敏度高、实时快速和无需标记等优点 ,广泛应用于环境监测、药物分析及微生物检测等多个领域 [2~ 4 ] .本文应用自组装单分子膜技术 ,在压电石英晶体表面形成致密有序的半胱胺单分子膜 ,通过戊二醛共价交联 ,将乙肝表面抗原单克隆抗体分子固定于晶体电极表面 ,研制成 HBs Ag压电免疫传感器 ,用于… 相似文献