Development of sulfhydrylated antibody functionalized microcantilever immunosensor for taxol

Development of sulfhydrylated antibody functionalized microcantilever immunosensor for taxol
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紫杉醇巯基化抗体功能化微悬臂梁免疫传感器的研制

DOI:
10.1016/j.snb.2011.02.055
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发表时间:
2011-08
期刊:
Sensors and Actuators B: Chemical
影响因子:
--
通讯作者:
Wu, Xiaoping
Wu, Xiaoping
中科院分区:
其他
文献类型:
--
作者:
Xue, Changguo;Zhao, Hongwei;Liu, Hong;Chen, Yanyun;Wang, Baomin;Zhang, Qingchuan;Wu, Xiaoping

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建立了一种用于紫杉醇无标记检测的微悬臂式免疫传感器的金表面硫化单抗固定化方法。合成了硫代修饰的抗紫杉醇单抗。然后将其固定在微悬臂金表面。利用光学杠杆技术实时监测了不同紫杉醇浓度对应的微悬臂梁的挠度。采用非竞争性酶联免疫吸附试验(EL ISA)检测了抗紫杉醇单抗在硫代修饰前后的活性,以及硫代修饰后的抗紫杉醇单抗在金表面的结合情况。方法检出限为1 ng/m L,用于人血浆中紫杉醇的检测。
An immobilization method using a sulfhydrylated monoclonal antibody (mAb) on the gold surface of a microcantilever immunosensor was developed for label-free detection of taxol. The sulfhydrylated anti-taxol mAb was synthesized. Then it was immobilized on the gold surface of the microcantilever. The deflection of the microcantilever corresponding to different taxol concentrations was real time monitored by optical lever technique. The activity of the anti-taxol mAb before and after sulfhydrylation, and the binding of the sulfhydrylated anti-taxol mAb on the gold surface of the microcantilever were evaluated by non-competitive enzyme-linked immunosorbent assay (ELISA). The limit of detection is 1ng/mL and the method was used for detection of taxol in human plasma sample.
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发表时间: 1995-07
影响因子: 5.1
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