Abstract This research approach has been used to enhance and investigate the electrical performance of graphene-based textiles by using an exhaust dyeing method. We developed a highly flexible and wearable e-textile for smart clothing in general and electrocardiogram (ECG) biomedical applications in particular. One step dyeing and reduction of graphene oxide on the textile substrate was accomplished simultaneously at 90 °C in 2 h. After one bath dyeing and reduction of GO, the knitted fabric was coated with conductive polymer PEDOT: PSS via dip coating as a layer by layer (LBL) technique. The resultant knitted textile electrode showed a reduction in sheet resistance from 2.5 MΩ∼140KΩ with increasing (1∼10) dyeing cycles. The electrical conductivity was further the improved, as sheet resistance was decreased from 180KΩ∼120Ω when coated with PEDOT: PSS as compared to pristine PEDOT: PSS and rGO. The results showed that washing has an adverse effect on electrical conductivity. The textile electrode was stable up to 20∼30 washing and 120∼130 bending cycles. The developed electrodes were used as an ECG electrode, with low impedance and higher contact to human skin. The textile electrode showed the enhanced performance to detect the high-quality electrocardiograms (ECG) signals for heart rate in both wet and dry conditions.

中文翻译：

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用于可穿戴心电图 (ECG) 监测的所有有机氧化石墨烯和聚 (3, 4-乙烯二氧噻吩) - 聚（苯乙烯磺酸盐）涂层针织织物

摘要 该研究方法已被用于通过使用浸染法增强和研究石墨烯基纺织品的电性能。我们开发了一种高度灵活且可穿戴的电子纺织品，适用于一般的智能服装，特别是心电图 (ECG) 生物医学应用。纺织品基材上氧化石墨烯的一步染色和还原是在 90°C 下在 2 小时内同时完成的。经过一浴染色和 GO 还原后，通过浸涂作为逐层 (LBL) 技术将导电聚合物 PEDOT: PSS 涂覆在针织织物上。随着染色循环次数的增加，所得针织纺织电极的薄层电阻从 2.5 MΩ~140KΩ 降低。导电性进一步提高，当涂有 PEDOT 时，薄层电阻从 180KΩ~120Ω 降低：PSS 与原始 PEDOT 相比：PSS 和 rGO。结果表明，洗涤对电导率有不利影响。纺织电极在洗涤 20~30 次和弯曲 120~130 次后仍保持稳定。开发的电极用作心电图电极，具有低阻抗和更高的人体皮肤接触。纺织电极显示出增强的性能，可以在潮湿和干燥条件下检测高质量的心率心电图 (ECG) 信号。