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Fabrication of gold/polypyrrole core/shell nanowires on a flexible substrate for molecular imprinted electrochemical sensors

机译:在分子印迹电化学传感器的柔性基板上制备金/聚吡咯核/壳纳米线

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摘要

In this work, we fabricated gold-nanowires (Au NWs) on flexible substrates by direct current electrochemical deposition. Then, we electropolymerized a polypyrrole layer onto the Au NWs via cyclic voltammetry (CV) as the molecular imprinted polymer biosensor to detect dopamine (DA). The influence of the scan rate of CV for the sensor preparation was optimized. CV and differential pulse voltammetry (DPV) were used to measure different DA concentrations. The Au/polypyrrole core/shell nanowires sensor showed good DPV signal intensity at 805 mu A mM(-1) and the determined linear range for DA was 4 x 10(-7) to 1 x 10(-5) M (N = 3).
机译:在这项工作中,我们通过直流电化学沉积在柔性基板上制造了金纳米线(Au NWs)。然后,我们通过循环伏安法(CV)将聚吡咯层电聚合到金纳米线上,作为分子印迹聚合物生物传感器来检测多巴胺(DA)。优化了CV扫描速率对传感器制备的影响。 CV和差分脉冲伏安法(DPV)用于测量不同的DA浓度。 Au /聚吡咯核/壳纳米线传感器在805μA mM(-1)处显示出良好的DPV信号强度,DA的确定线性范围为4 x 10(-7)到1 x 10(-5)M(N = 3)。

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