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梅毒压电石英晶体免疫传感器的研制

Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi(2005)

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Abstract
分别用聚乙烯亚胺(PE I)和戊二醛(G lu)溶液在压电石英晶体银电极上固定梅毒抗体来检测不同浓度的标准抗原溶液。抗体在晶体表面固化后通过原子力显微镜(AFM)显示依然保持Y型分子结构。石英晶体的响应线性范围5×10-5~1.25×10-4g/mL,相关系数为0.9976,最佳响应pH值为7.5。在检测时通过和BSA相对照,传感器有良好的选择性。最后,又对传感器重复性作了一定探讨。
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polyethylenimine(pei) glu treponema pallidum piezoelectric quartz crystal immunosensor
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