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首页> 外文期刊>Journal of biomaterials science >A novel method of fabricating carbon nanotubes-polydimethylsiloxane composite electrodes for electrocardiography
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A novel method of fabricating carbon nanotubes-polydimethylsiloxane composite electrodes for electrocardiography

机译：一种用于心电图术的碳纳米管-聚二甲基硅氧烷复合电极的制备方法

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摘要

Polymer-based flexible electrodes are receiving much attention in medical applications due to their good wearing comfort. The current fabrication methods of such electrodes are not widely applied. In this study, polydimethylsiloxane (PDMS) and conductive additives of carbon nanotubes (CNTs) were employed to fabricate composite electrodes for electrocardiography (ECG). A three-step dispersion process consisting of ultrasonication, stirring, and in situ polymerization was developed to yield homogenous CNTs-PDMS mixtures. The CNTs-PDMS mixtures were used to fabricate CNTs-PDMS composite electrodes by replica technology. The influence of ultrasonication time and CNT concentration on polymer electrode performance was evaluated by impedance and ECG measurements. The signal amplitude of the electrodes prepared using an ultrasonication time of 12h and CNT content of 5wt% was comparable to that of commercial Ag/AgCl electrodes. The polymer electrodes were easily fabricated by conventional manufacturing techniques, indicating a potential advantage of reduced cost for mass production.
机译：基于聚合物的柔性电极由于其良好的佩戴舒适性而在医学应用中受到了广泛的关注。这种电极的当前制造方法没有被广泛应用。在这项研究中，聚二甲基硅氧烷（PDMS）和碳纳米管（CNTs）的导电添加剂被用于制造心电图（ECG）的复合电极。开发了由超声波处理，搅拌和原位聚合组成的三步分散工艺，以生产均匀的CNTs-PDMS混合物。通过复制技术，将CNTs-PDMS混合物用于制造CNTs-PDMS复合电极。通过阻抗和ECG测量，评估超声处理时间和CNT浓度对聚合物电极性能的影响。使用12h的超声时间和5wt％的CNT含量制备的电极的信号幅度与商业化的Ag / AgCl电极相当。聚合物电极易于通过常规制造技术制造，表明潜在的优点是降低了批量生产的成本。

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