fig5

Figure 5. (A) Flexible wearable thermoelectric device composed of eight thermoelectric nanofiber yarns in series and its applications in human energy harvesting and respiration monitoring^[98]. Copyright 2022, Elsevier; (B) Schematic illustration of the thermoelectric sensing mask for detecting respiratory rate^[99]. Copyright 2024, Elsevier; (C) The thermoelectric fabric and its application in self-powered wearable products. Copyright 2024, Elsevier; (D) Temperature sensing applications of fabrics integrated into daily wear masks^[101]; (E) Demonstration of a deep-learning-assisted self-powered in-nostril respiratory monitoring strategy. © Wiley 2022; (F) Design of the P-THF-based self-powered in-nostril thermoelectric sensor for respiratory monitoring^[102]. Copyright 2025, Elsevier. CNT: Carbon nanotube; CPR: cardiopulmonary resuscitation; CEF: conductive elastomer film; PVA/SA: composite material of polyvinyl alcohol and sodium alginate.