Zhao Xing, Wang Li-Ya, Tang Chun-Yan, Zha Xiang-Jun, Liu Yong, Su Bai-Hai, Ke Kai, Bao Rui-Ying, Yang Ming-Bo, Yang Wei
College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, Sichuan, China.
Department of Nephrology, West China Hospital, Sichuan University, Chengdu 610041, China.
ACS Nano. 2020 Jul 28;14(7):8793-8805. doi: 10.1021/acsnano.0c03391. Epub 2020 Jul 14.
An increasing utilization of flexible healthcare electronics and biomedicine-related therapeutic materials urges the development of multifunctional wearable/flexible smart fabrics for personal therapy and health management. However, it is currently a challenge to fabricate multifunctional and on-body healthcare electronic devices with reliable mechanical flexibility, excellent breathability, and self-controllable joule heating effects. Here, we fabricate a multifunctional MXene-based smart fabric by depositing 2D TiCT nanosheets onto cellulose fiber nonwoven fabric special MXene-cellulose fiber interactions. Such multifunctional fabrics exhibit sensitive and reversible humidity response upon HO-induced swelling/contraction of channels between the MXene interlayers, enabling wearable respiration monitoring application. Besides, it can also serve as a low-voltage thermotherapy platform due to its fast and stable electro-thermal response. Interestingly, water molecular extraction induces electrical response upon heating, , functioning as a temperature alarm, which allows for real-time temperature monitoring for thermotherapy platform without low-temperature burn risk. Furthermore, metal-like conductivity of MXene renders the fabric an excellent Joule heating effect, which can moderately kill bacteria surrounding the wound in bacteria-infected wound healing therapy. This work introduces a multifunctional smart flexible fabric suitable for next-generation wearable electronic devices for mobile healthcare and personal medical therapy.
柔性医疗电子设备和生物医学相关治疗材料的使用日益增加，这促使人们开发用于个人治疗和健康管理的多功能可穿戴/柔性智能织物。然而，目前制造具有可靠机械柔韧性、出色透气性和可控焦耳热效应的多功能人体医疗电子设备是一项挑战。在此，我们通过将二维TiCT纳米片沉积在纤维素纤维无纺布上，利用特殊的MXene-纤维素纤维相互作用，制备了一种多功能基于MXene的智能织物。这种多功能织物在HO诱导MXene层间通道膨胀/收缩时表现出灵敏且可逆的湿度响应，可实现可穿戴呼吸监测应用。此外，由于其快速稳定的电热响应，它还可作为低压热疗平台。有趣的是，水分子提取在加热时会引发电响应，起到温度警报的作用，从而在无低温烫伤风险的情况下对热疗平台进行实时温度监测。此外，MXene的类金属导电性使织物具有出色的焦耳热效应，在细菌感染伤口愈合治疗中，它可以适度杀死伤口周围的细菌。这项工作介绍了一种适用于下一代可穿戴电子设备的多功能智能柔性织物，用于移动医疗和个人医疗治疗。
