<br>3D 打印高导电性和强粘附性 PEDOT：PSS 水凝胶基生物电子界面，用于精确肌电图监测,Journal of Colloid and Interface Science

当前位置： X-MOL 学术 › J. Colloid Interface Sci. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

3D 打印高导电性和强粘附性 PEDOT：PSS 水凝胶基生物电子界面，用于精确肌电图监测
Journal of Colloid and Interface Science ( IF 9.4 ) Pub Date : 2024-05-23 , DOI: 10.1016/j.jcis.2024.05.171
Rongtai Wan ₁ , Shuhan Liu ₁ , Zheng Li ₂ , Gen Li ₁ , Hai Li ₁ , Jianhong Li ₃ , Jingkun Xu ₄ , Ximei Liu ₁

Affiliation

PEDOT：基于 PSS 水凝胶的生物电子界面在包括生物医学设备、可穿戴设备和表皮电子学在内的各个领域都受到了极大的关注。然而，开发集出色导电性、强粘附力和先进加工兼容性于一身的高性能生物电子界面仍然是一个挑战。在此，我们通过 3D 打印新型聚乙烯醇-甲醛（PVAF）-PEDOT：PSS 复合墨水开发了一种高性能生物电子界面。这种 PEDOT：PSS-PVAF 墨水在直接喷墨 3D 打印中表现出良好的流变特性，能够制造具有高纵横比的高分辨率图案和三维结构。由这种 PEDOT：PSS-PVAF 墨水打印的水凝胶生物电子界面同时实现了高导电性（超过 100 S m-1）、强附着力（31.44 ± 7.07 kPa）以及稳定的电化学性能（电荷注入容量为 13.72 mC cm-2，电荷存储容量为 18.80 mC cm-2）。我们进一步整合了 PEDOT：PSS-PVAF 水凝胶生物电子界面，以制造用于肌电图（EMG）信号记录的粘合性皮肤电极。与商业产品相比，所得的 EMG 皮肤电极表现出卓越的性能和稳定性，在不同重量和重复运动下保持 > 10 dB 的高信噪比。基于 PEDOT：PSS-PVAF 的水凝胶生物电子界面的这些优势性能可能有助于各种生物电子应用，如医疗保健监测和表皮生物电子学。

"点击查看英文标题和摘要"

3D printing of highly conductive and strongly adhesive PEDOT:PSS hydrogel-based bioelectronic interface for accurate electromyography monitoring

PEDOT:PSS hydrogel-based bioelectronic interfaces have gained significant attention in various fields including biomedical devices, wearable devices, and epidermal electronics. However, the development of high-performance bioelectronic interfaces that integrate excellent conductivity, strong adhesion, and advanced processing compatibility remains a challenge. Herein, we develop a high-performance bioelectronic interface by 3D printing of a novel poly(vinyl alcohol-formaldehyde) (PVAF)-PEDOT:PSS composite ink. Such a PEDOT:PSS-PVAF ink exhibits favorable rheological properties for direct-ink-writing 3D printing, enabling the fabrication of high-resolution patterns and three-dimensional structures with high aspect ratios. Hydrogel bioelectronic interface printed by such PEDOT:PSS-PVAF ink simultaneously achieves high conductivity (over 100 S m-1), strong adhesion (31.44 ± 7.07 kPa), as well as stable electrochemical performance (charge injection capacity of 13.72 mC cm-2 and charge storage capacity of 18.80 mC cm-2). We further integrate PEDOT:PSS-PVAF hydrogel bioelectronic interface to fabricate adhesive skin electrodes for electromyography (EMG) signal recording. The resultant EMG skin electrodes demonstrate superior performance and stability compared to commercial products, maintaining high signal-to-noise ratio of > 10 dB under varying weights and repetitive motions. These advantageous performance of PEDOT:PSS-PVAF based hydrogel bioelectronic interfaces may be helpful for diverse bioelectronic applications like healthcare monitoring and epidermal bioelectronics.

更新日期：2024-05-23

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南