Polyaniline濃度変化及びドーピングがpHセンサ感度に及ぼす影響の検討

抄録

Human sweat contains a variety of substances, some of which are correlated with sweat in the body. Therefore, measuring the concentration of certain substances in sweat can play an important role in health management. However, it has been suggested that pH affects the measurements in sweat, and it would be beneficial to know the pH in order to improve the accuracy of the measurements. In this study, we develop a flexible sensor device that can measure pH in sweat with high accuracy using CNTs (carbon nanotubes) as electrodes. CNTs were used as electrodes and masked with PDMS, a resin. CNTs were used as electrodes and masked with PDMS, a resin, to simplify and reduce the cost of the sensor fabrication by skipping the doping process. In order to further improve the sensor sensitivity, pH measurement was performed by changing the concentration of polyaniline, and 175~200 [mg/mL] was found to be the optimum concentration of polyaniline.