fig10

Figure 10. Wearable sensors based on active communication technology. (A) The wearable wireless continuous blood pressure monitoring system based on BLE. (i) The system overview, (ii) Lifetime of the rechargeable lithium-ion battery in intermittent working mode. Reproduced with permission^[237]. Copyright 2023, Springer Nature Limited; (B) PSiFI system based on BLE. Reproduced with permission^[243]. Copyright 2024, Springer Nature Limited; (C) A flexible smart wearable alarming system. (i) System overview schematic diagram, (ii) Optical image of flexible dual-mode sensor^[248]. Copyright 2025, Springer Nature Limited; (D) Wireless, integrated system for real-time, onboard, adaptive wound diagnostics and treatment. (i) CAD model of There Heal wearable device, (ii) The Heal platform. Reproduced with permission^[253]. Copyright 2025, Springer Nature Limited; (E) All-polymer aqueous sodium-ion battery with PANI as symmetric electrodes^[292]. Copyright 2024, Springer Nature Limited; (F) The self-powered wearable leg movement sensing system. Reproduced with permission^[302]. Copyright 2023, Wiley-VCH GmbH; (G) Photograph of the stretchable patch antenna array^[309]. Copyright 2025, Wiley-VCH GmbH; (H) Direct-ink-writing printed stretchable eutectic gallium-indium antenna. Reproduced with permission^[310]. Copyright 2025, Wiley-VCH GmbH. BLE: Bluetooth low energy; PSiFI: personalized skin-integrated facial interface; CAD: computer-aided design; PANI: polyaniline; TENG: triboelectric nanogenerator; CNN: convolutional neural network.