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首页> 外文期刊>Electroanalysis >Controlling Field-Effect Transistor Biosensor Electrical Characteristics Using Immunosorbent Assay
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Controlling Field-Effect Transistor Biosensor Electrical Characteristics Using Immunosorbent Assay

机译:使用免疫吸附测定法控制场效应晶体管生物传感器的电气特性

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摘要

A method to modulate the signal of field-effect transistor biosensors using an immunosorbent assay is described. A model system is used to show that binding of a secondary antibody, to which highly charged gold colloids are attached, to an analyte on the device floating gate can be used to induce strong electrostatic effects, which affect the device threshold voltage and source-drain current. This process may be used for signal amplification, with the secondary binding specificity allowing for improved signal to noise ratio, which is of great importance for early disease detection.
机译:描述了一种使用免疫吸附测定法调节场效应晶体管生物传感器信号的方法。使用模型系统可以显示,带有高电荷的金胶体的二抗与器件浮栅上的分析物的结合可用于诱导强烈的静电效应,从而影响器件的阈值电压和源极-漏极当前。此过程可用于信号放大,其二级结合特异性可提高信噪比,这对于早期疾病检测非常重要。

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