Wearable sweat sensing is essential to the development of personalized health monitoring in a noninvasive manner with molecular-level insight. Hence, there is an increasing demand for convenient, facile, and efficient fabrication of wearable sensing arrays. Inspired by a photosensitive stamp (PS), we present herein a simple, low-cost, and eco-friendly vacuum filtration–transfer printing method (termed PS-VFTP) for the scalable preparation of single-walled carbon nanotube (SWCNT) based flexible electrode arrays. This method can economically yield customized flexible SWCNT arrays with praiseworthy performance, such as high reproducibility, precision, uniformity, conductivity, and mechanical stability. In addition, the flexible SWCNT arrays can be easily functionalized into high-performance electrochemical sensors for the simultaneous monitoring of sweat metabolites (glucose, lactate) and electrolytes (Na⁺, K⁺). The integration of wearable sensing arrays with a signal acquisition and processing circuit system in the intelligent wearable sensors empowers them to realize noninvasive, real-time, and in situ sweat analysis during exercise. More meaningfully, such a PS-VFTP strategy can be easily expanded to the economical manufacturing of other flexible electronic devices.

中文翻译：

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用于无创实时汗液分析的可穿戴传感阵列的光敏印章启发可扩展制造策略

可穿戴汗液传感对于以分子水平洞察的无创方式开发个性化健康监测至关重要。因此，人们越来越需要方便、简便、高效地制造可穿戴传感阵列。受光敏印章 (PS) 的启发，我们在此提出了一种简单、低成本、环保的真空过滤-转移印刷方法（称为 PS-VFTP），用于可扩展地制备基于单壁碳纳米管 (SWCNT) 的柔性电极阵列。该方法可以经济地生产定制的柔性 SWCNT 阵列，具有值得称赞的性能，如高重现性、精度、均匀性、导电性和机械稳定性。此外，⁺ , K ⁺ )。可穿戴传感阵列与智能可穿戴传感器中的信号采集和处理电路系统集成，使其能够在运动过程中实现无创、实时、原位的汗液分析。更有意义的是，这种 PS-VFTP 策略可以很容易地扩展到其他柔性电子设备的经济制造。