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Monitoring analgesic drug using sensing method based on nanocomposite

机译:基于纳米复合材料的传感方法监测止痛药

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This paper reports a rapid, reliable and sensitive electrochemical method for the determination of acetaminophen, a safe analgesic drug. Most methods currently used for therapeutic drug monitoring require a pre-treatment of the sample. Biosensors avoid this kind of drawbacks. A horseradish peroxidase (HRP) was immobilized using core-shell ZrO@Fe3O4 nanoparticles on chitosan hybrid film electrodeposited on the surface of an Au electrode. The surface functionalization of core-shell ZrO@Fe(3)O(4)NPs on a chitosan hybrid film was characterized by cyclic voltammetry (CV), scanning electron microscopy (SEM), and electrochemical impedance spectroscopy (EIS). The experimental variables that can affect the acetaminophen amperometric response, such as the pH, temperature and applied potential, have been optimized to perform a selective determination of acetaminophen. An average limit of detection of 0.01 mu M (S/N = 3) was obtained. The biosensor was finally applied to the determination of acetaminophen in complex matrices, such as pharmaceutical drugs.
机译:本文报告了一种快速,可靠和灵敏的电化学方法,用于测定对乙酰氨基酚(一种安全的镇痛药)。当前用于治疗药物监测的大多数方法都需要对样品进行预处理。生物传感器避免了这种缺点。使用核-壳ZrO @ Fe3O4纳米颗粒将辣根过氧化物酶(HRP)固定在电沉积在Au电极表面的壳聚糖杂化膜上。通过循环伏安法(CV),扫描电子显微镜(SEM)和电化学阻抗谱(EIS)对壳聚糖杂化膜上核-壳ZrO @ Fe(3)O(4)NPs的表面功能化进行了表征。已经优化了可以影响对乙酰氨基酚电流响应的实验变量,例如pH,温度和施加的电势,以进行对乙酰氨基酚的选择性测定。获得的平均检出限为0.01μM(S / N = 3)。该生物传感器最终应用于复杂基质(如药物)中对乙酰氨基酚的测定。

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