This patent addresses these challenges by introducing a novel composite material comprising an optically transparent wood substrate impregnated with a polymer (e.g., PMMA), a thermochromic halide perovskite layer (e.g.,MA4PbI5Br·2H2O ), and a protective polymer layer (e.g., PMMA).

The patent presents a three-layer composite material

The present invention pertains to a thermochromic hydrogel transparent wood with variable optical transmittance in response to a temperature change, and a method of fabricating the same.

The patent proposes a portable blood pressure sensor comprising a sensing device, a force-generation unit, a processor, and flexible encapsulation layers.

Inspired by the whitest beetle, Cyphochilus, we invented a passive radiative cooling ceramic material that can achieve record-high solar reflection of 99.6% and strong thermal emissivity of 96.5%.

The hybrid dehumidifier mainly consists of several plate heat exchangers with the superhydrophilic-nanostructured composite surface, a thermoelectric cooler.