30 January 2024 | Pengwei Wang, Xiaohao Ma, Zhiqiang Lin, Fan Chen, Zijian Chen, Hong Hu, Hailong Xu, Xinyi Zhang, Yuqing Shi, Qiaoy Huang, Yuanjing Lin, Zijian Zheng
The paper presents an innovative in-textile photolithography technique for creating precise and uniform metal patterns on porous textile structures, addressing the challenges of achieving high conductive patterns without compromising the textile's flexibility, breathability, and comfort. The method combines polymer-assisted metal deposition (PAMD) and double-sided photolithography to achieve sub-100 μm resolution, high electrical conductivity, and robust mechanical stability. The fabricated metal patterns exhibit excellent mechanical stability (10,000 bending cycles), washability (20 washes), and permeability, making them suitable for wearable electronics. A proof-of-concept demonstration is provided through the development of a multiplexed biosensing headband for real-time sweat monitoring, showcasing the potential of this technology in non-invasive health monitoring and human-machine interfaces.The paper presents an innovative in-textile photolithography technique for creating precise and uniform metal patterns on porous textile structures, addressing the challenges of achieving high conductive patterns without compromising the textile's flexibility, breathability, and comfort. The method combines polymer-assisted metal deposition (PAMD) and double-sided photolithography to achieve sub-100 μm resolution, high electrical conductivity, and robust mechanical stability. The fabricated metal patterns exhibit excellent mechanical stability (10,000 bending cycles), washability (20 washes), and permeability, making them suitable for wearable electronics. A proof-of-concept demonstration is provided through the development of a multiplexed biosensing headband for real-time sweat monitoring, showcasing the potential of this technology in non-invasive health monitoring and human-machine interfaces.