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首页> 外文OA文献 >A Comparative Study of Polypyrrole and Ag/Polypyrrole Hybrid Nanocomposites as Sensitive Material Used for New Dry Polarizable Bioimpedance Sensors
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A Comparative Study of Polypyrrole and Ag/Polypyrrole Hybrid Nanocomposites as Sensitive Material Used for New Dry Polarizable Bioimpedance Sensors

机译：聚吡咯和Ag /聚吡咯杂交纳米复合材料作为新型干偏差生物阻抗传感器的敏感材料的对比研究

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Three types of dry polarizable electric bioimpedance sensor for skin bioimpedance monitoring without skin preparation have been developed. The sensitive materials as a component of these sensors are the conductive polypyrrole and hybrid nanocomposite polypyrrole-Ag, with 10% and 20% Ag incorporated in the polypyrrole matrix. The hybrid nanocomposites Ag nanoparticles (NPs)/polypyrrole were obtained by introducing the colloid solution of Ag NPs in pyrrole solution, followed by polymerisation, and calculated for 10% and 20% of monomer’s mass. The structural characterisation and morphological analysis of these sensitive materials were carried-out by Raman spectrometry, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. In making the electrodes, the technique of pressing powders of polypyrrole and hybrid composites Ag NPs/polypyrrole in a hydraulic press was used in the form of a disk. The electric bioimpedance performance of sensors was investigated using a two-point method in the frequency range of 1–300 kHz, at a voltage of 2 Vpeak-peak, on six human subjects, three men and three women. For these three bioimpedance sensors, it was found that the electric bioimpedance of the skin decreases across the frequency range and shows good linearity of the impedance-frequency curve on the range frequency of interest in bioimpedance measurements.
机译：三种类型的皮肤生物阻抗不备皮监控干极化电生物阻抗传感器已经被开发。敏感材料，这些传感器的一个部件是导电聚吡咯和混合纳米复合聚吡咯 - 银，用10％和20％的Ag中的聚吡咯矩阵并入。的混合纳米复合材料的Ag纳米颗粒（NP）/通过引入银NP的在吡咯溶液中的胶体溶液中，然后聚合得到的聚吡咯，和10％和单体的质量的20％来计算。这些敏感材料的结构表征和形态分析分别进行出由拉曼光谱测定，傅里叶变换红外光谱（FTIR），扫描电子显微镜和能量分散X射线光谱。在制备电极时，在磁盘的形式使用压制聚吡咯和杂化复合物的Ag纳米颗粒/聚吡咯在液压机的粉末的技术。在1-300千赫的频率范围内使用双点法的传感器的电生物阻抗性能进行了研究，在2 V峰值 - 峰值的电压，在六个人类受试者，三名男三名女。对于这三种生物阻抗传感器，发现皮肤的电生物阻抗横跨上的生物阻抗测量感兴趣的频率范围内的阻抗频率曲线的频率范围，并表现出良好的线性度降低。

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