Since the introduction of the first expounded triboelectric nanogenerator (TENG) in 2012, the theoretical and practical aspects of the TENG have been researched as an alternative energy harvesting technology to convert mechanical energy into electricity efficiently. Numerous self-powered sensing systems have adopted the TENG as a power source to further explore its versatile applications toward different targets. In this study, we employed a TENG to replace a traditional power supply for synthesizing different metallic nanoparticles using an electrochemical approach. Carbon fibers were adopted as the conductive substrates to grow the metallic nanoparticles, where the size and density of the nanoparticles on carbon fibers can be controlled by the electric output of the TENG. Additionally, we demonstrated that the as-prepared carbon modified and integrated with the TENG to construct a wearable self-powered sensing system exhibited significant selectivity and sensitivity toward lactate detection. Furthermore, the design of the sensing unit was favorable regarding its adaptability and flexibility to fit human body shapes and postures. As demonstrated in this study, the as-prepared self-powered sensing system could detect the lactate concentration in human perspiration, which can be an ideal wearable device for end users who seek real-time monitoring of their physical condition. This study concludes with a proposal for noninvasive biosensors, which provide boundless potential for future cross-field applications.

自2012年推出第一台阐述型摩擦发电纳米发电机（TENG）以来，已经研究了TENG的理论和实践方面，作为一种可替代的能量收集技术，可有效地将机械能转化为电能。众多的自供电传感系统都采用TENG作为动力源，以进一步探索其针对不同目标的通用应用。在这项研究中，我们使用TENG代替了使用电化学方法合成不同金属纳米粒子的传统电源。碳纤维被用作导电基质来生长金属纳米颗粒，其中碳纤维上纳米颗粒的大小和密度可以通过TENG的电输出来控制。此外，我们证明了将制得的碳改性并与TENG整合在一起，以构建可穿戴的自供电传感系统，显示出对乳酸检测的显着选择性和灵敏性。此外，感测单元的设计在适应人体形状和姿势方面的适应性和灵活性方面是有利的。如本研究所示，准备好的自供电传感系统可以检测人体汗液中的乳酸浓度，对于寻求实时监控其身体状况的最终用户而言，这可能是理想的可穿戴设备。这项研究最后提出了一项针对非侵入性生物传感器的提议，该提议为未来的跨场应用提供了无限的潜力。