fig6

From: Recent progress of biosensors based on thermoelectric effects for monitoring physical activity and environment monitoring

Figure 6. (A) Self-powered temperature monitoring using the PVA/GL thermogalvanic hydrogel of the H-window for outside temperature monitoring^[106]. © Royal Society of Chemistry 2022; (B) The working mode of the MAA e-textile in the fire warning system^[107]. Copyright 2023, Elsevier; (C)Thermoelectric and photoelectric dual modulated sensors for accurate fire recognition and warning; (D) V-T plots with light with heat and heat alone; the settings of threshold A and threshold B with output voltages (up) and the improvement of alarming accuracy by adjusting the settings of threshold A and threshold B (down)^[108]. © Wiley 2023. ADC: Analog-to-Digital Converter; TE: thermoelectric; PE: piezoelectric.