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Zhou et al. Soft Sci. 2026, 6, 10 Page 27 of 47

Figure 14. Applications of wearable devices in energy supply. (A) Powering wearable flexible electronics [148] . Reproduced with permission.
Copyright 2023, John Wiley & Sons; (B) “Moisture-powered sleeve” supplies electricity to wearable pedometers [149] . Reproduced with
permission. Copyright 2024, American Chemical Society; (C) Protein-based devices are applied in wearable and wireless sensors [40] .
Reproduced with permission. Copyright 2023, Royal Society of Chemistry; (D) Wearable MEGT devices are used in systems for
monitoring bodily signals [137] . Reproduced under CC BY license from Renbo Zhu, 2025, Advanced Materials. MEGT: Moisture-electric
generation textile; MEG: moisture-electric generator; s-MEGs: stretchable moisture electric generators.

generate electricity from moisture in these special environments, providing stable power support for
monitoring equipment and exhibiting excellent environmental adaptability. This enables devices to operate
reliably under extreme conditions and natural environmental fluctuations, offering continuous power
support for electronic devices. Such capability is particularly valuable in remote or inaccessible areas. As
shown in Figure 15A, the device can generate electricity by exploiting humidity differences in underwater
environments to supply power to sensors and communication equipment, ensuring effective monitoring .
[54]
It can act as an “infinite tracker” to transmit real-time position information to underwater monitors,
improving positioning reliability. For wireless communication and data transmission in extreme conditions,
MEGT can operate in thunderstorms, snowy mountains, and deserts [177] . In Figure 15B, the device charges
commercial capacitors to power practical electronic equipment . In arid deserts, charged capacitors can
[40]
drive wireless trackers and transmit location data in real time, providing a reliable solution for emergency
rescue operations. MEGT also supplies energy under low temperature, high temperature, and low-humidity
conditions, with minimal dependence on illumination or wind energy [Figure 15C] . It can collect data by
[35]
detecting human movement and strain, providing real-time feedback for exercise monitoring and health
tracking. In Figure 15D, hydrogel-based devices can absorb environmental water and convert it into
electrical energy at temperatures as low as -30 °C [178] . This ensures continuous power supply for various
electronic devices, including temporary power for communication tools and lighting, supporting basic
survival and communication needs. Importantly, these devices maintain operation in extreme cold,
overcoming the limitations of traditional batteries or energy-harvesting equipment at low temperatures.
Information can also be encrypted and transmitted using a Humidity Electronic Information Interface
(HEII) in combination with Morse code . This approach leverages the simplicity and universality of Morse
[179]
code along with the humidity-sensing capability of HEII, enabling efficient and secure information
transmission in special environments. The stable power supplied by MEGT ensures reliable operation of
signal acquisition devices and provides a practical scheme for high-security, high-reliability information
transfer in challenging conditions.