{"title":"Ultra-thin and Sensitive Pressure Sensor Based on MXene/PVDF-HFP Composite Fiber TENG for Self-diagnosis of Ligament Injuries","authors":"Yibo Zhang, Xin Dai, Yue Zhou, Junxing Shao, Liupeng Zhao, Tianshuang Wang, Fangmeng Liu, Xu Yan, Modi Yang, Peng Sun, Geyu Lu","doi":"10.1016/j.nanoen.2024.110372","DOIUrl":null,"url":null,"abstract":"Early screening of anterior cruciate ligament (ACL) injuries using wearable devices enables timely intervention and reduces the risk of chronic complications. However, the subtle biomechanical signals of the ACL pose challenges to the baseline stability, sensitivity and skin adherence of wearable devices. Here, we present a TENG based on MXene/PVDF-HFP composite fibers for ACL self-diagnosis, leveraging the inherent advantages of TENG in baseline stability. The fiber-network structure prepared by electrospinning ensures that the TENG is ultra-thin and flexible to wear. The addition of MXene significantly increases the relative permittivity of the electrode materials, and re-modulates the crystalline phase (α and β). Consequently, the peak-to-peak open circuit voltage of the TENG reaches 160<!-- --> <!-- -->V under a pressure of 10<!-- --> <!-- -->N. It can respond to pressures as low as 0.01<!-- --> <!-- -->N, allowing it to distinguish subtle relative displacements between the tibia and the knee. Integrated with a mobile app, a self-diagnostic system capable of detecting varying degrees of ACL injury has been developed. We expect this approach to facilitate the early detection and timely treatment of ACL injuries.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":16.8000,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano Energy","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.nanoen.2024.110372","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Early screening of anterior cruciate ligament (ACL) injuries using wearable devices enables timely intervention and reduces the risk of chronic complications. However, the subtle biomechanical signals of the ACL pose challenges to the baseline stability, sensitivity and skin adherence of wearable devices. Here, we present a TENG based on MXene/PVDF-HFP composite fibers for ACL self-diagnosis, leveraging the inherent advantages of TENG in baseline stability. The fiber-network structure prepared by electrospinning ensures that the TENG is ultra-thin and flexible to wear. The addition of MXene significantly increases the relative permittivity of the electrode materials, and re-modulates the crystalline phase (α and β). Consequently, the peak-to-peak open circuit voltage of the TENG reaches 160 V under a pressure of 10 N. It can respond to pressures as low as 0.01 N, allowing it to distinguish subtle relative displacements between the tibia and the knee. Integrated with a mobile app, a self-diagnostic system capable of detecting varying degrees of ACL injury has been developed. We expect this approach to facilitate the early detection and timely treatment of ACL injuries.
使用可穿戴设备对前十字韧带(ACL)损伤进行早期筛查,可以及时进行干预并降低慢性并发症的风险。然而,前交叉韧带微妙的生物力学信号对可穿戴设备的基线稳定性、灵敏度和皮肤附着力提出了挑战。在此,我们提出了一种基于 MXene/PVDF-HFP 复合纤维的前交叉韧带自诊断 TENG,充分利用了 TENG 在基线稳定性方面的固有优势。通过电纺丝制备的纤维网结构确保了 TENG 的超薄和柔性。MXene 的加入大大提高了电极材料的相对介电常数,并重新调节了结晶相(α 和 β)。因此,在 10 N 的压力下,TENG 的峰-峰开路电压可达 160 V。它能对低至 0.01 N 的压力做出反应,从而分辨出胫骨和膝盖之间微妙的相对位移。通过与手机应用程序的整合,我们开发出了一套能够检测前交叉韧带不同程度损伤的自我诊断系统。我们希望这种方法能促进交叉韧带损伤的早期检测和及时治疗。
期刊介绍:
Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem.
Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.