Developing
functional textiles with a cooling effect is important
for personal comfort in human life and activities. Although existing
passive cooling fabrics exhibit promising cooling effects, they do
not meet the thermal comfort requirements under many practical conditions.
Here, we report a nanofiber membrane-based moisture-wicking passive
cooling hierarchical metafabric that couples selective optical cooling
and wick-evaporation cooling to achieve efficient temperature and
moisture management. The hierarchical metafabric showed high sunlight
reflectivity (99.16% in the 0.3–0.76 μm wavelength range
and 88.60% in the 0.76–2.5 μm wavelength range), selective
infrared emissivity (78.13% in the 8–13 μm wavelength
range), and good moisture permeability owing to the optical properties
of the material and hierarchical morphology design. Cooling performance
experiments revealed that covering simulated skin with the hierarchical
metafabric prevented overheating by 16.6 °C compared with traditional
textiles, including a contribution from management of the humidity
(∼8.2 °C). In addition to the personal thermal management
ability, the hierarchical metafabric also showed good wearability.
Developing fabric-based electronics with good wearability is undoubtedly an urgent demand for wearable technologies. Although the state-of-the-art fabric-based wearable devices have shown unique advantages in the field of e-textiles, further efforts should be made before achieving "electronic clothing" due to the hard challenge of optimally unifying both promising electrical performance and comfortability in single device. Here, we report an all-fiber triboferroelectric synergistic e-textile with outstanding thermal-moisture comfortability. Owing to a tribo-ferroelectric synergistic effect introduced by ferroelectric polymer nanofibers, the maximum peak power density of the e-textile reaches 5.2 W m −2 under low frequency motion, which is 7 times that of the state-of-the-art breathable triboelectric textiles. Electronic nanofiber materials form hierarchical networks in the e-textile hence lead to moisture wicking, which contributes to outstanding thermal-moisture comfortability of the e-textile. The all-fiber electronics is reliable in complicated real-life situation. Therefore, it is an idea prototypical example for electronic clothing.
Levels of serum BAFF were elevated in patients with IgAN and were associated with clinical and pathological features of the disease. Serum BAFF levels could be a noninvasive biomarker for monitoring disease severity of IgAN.
Extreme heat events are mainly responsible for weather-related
human mortality due to climate change. However, there is a lack of
outdoor thermal management for protecting people from extreme heat
events. We present a novel infrared-radiation-enhanced nanofiber membrane
(NFM) that has good infrared resonance absorption and selectively
radiates thermal radiation of the human body through the atmosphere
and into the cold outer space. The NFM comprises polyamide 6 (PA6)
nanofibers and randomly distributed SiO2 submicron spheres
and has sufficient air permeability and thermal–moisture comfortability
because of its interconnect nanopores and micropores. We measure the
sky radiative cooling performance under a clear sky, and PA6/SiO2 NFM produces temperatures that are about 0.4–1.7 °C
lower than those of commercial textiles when covering dry and wet
hands and temperatures 1.0–2.5 °C lower than the ambient
temperature when thermal conduction and convection are isolated in
a closed device. Our processed PA6/SiO2 NFM combines sky
radiative cooling with thermal management of the human body very well,
which will promote the development of radiative cooling textiles.
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