Researchers found that toxic metal particles in rural North China air are smaller and potentially more harmful than those in urban areas. The study showed that village pollution was strongly linked to biomass and coal burning, while urban pollution was mainly associated with dust-related mineral particles. The findings highlight the overlooked health risks faced by rural populations exposed to PM_2.5-bound heavy metals.

Wearable smart sensors for monitoring human motion have emerged as an active area of research due to their potential applications in healthcare, sports performance, and human–machine interaction. These devices must not only provide accurate sensing capabilities but also be flexible, portable, and comfortable to integrate seamlessly into daily life. Conventional textiles, while widely used, are no longer sufficient to meet the functional demands of contemporary users. As a result, the textile industry is evolving toward functionalization and intelligence, with smart fabrics gaining increasing attention.

Layered double hydroxides (LDHs) exhibit excellent catalytic performance due to their unique two-dimensional (2D) layered structure, adjustable chemical composition, and tunable interlayer ion types and contents. However, when employed as a catalyst, LDH materials still suffer from several drawbacks, such as poor electrical conductivity and a tendency to agglomerate. To further improve their catalytic performance, a variety of effective modification strategies have been adopted, including electronic structure modulation, morphological control, and interface engineering.