Electromagnetic (EM) wave absorbers with strong attenuation over a broad frequency range are critical for radiation protection and military stealth. However, magnetic alloys with high dissipation capacity remain challenging to achieve satisfactory impedance matching and enhanced high-frequency magnetic loss due to the scarcity of rational design for the distribution and size of magnetic particles. Herein, we design Prussian blue analogue (PBA) derived FeCo magnetoelectric composite nanocages by confinement engineering, achieving strong absorption capacity of -47.4 dB and broad bandwidth of 7.10 GHz at a small thickness of 1.9 mm. This work not only sheds light on the fabrication of FeCo magnetoelectric composite nanocages as efficient and wideband EM wave absorbers, but also propose a confinement engineering strategy for rational design of functional nanocomposites in multiple fields such as electromagnetics, electronics and optoelectronics.

Researchers have developed a programmable, multi-responsive soft actuator based on MXene materials that can reversibly deform under humidity, light, and magnetic fields. By introducing micro-ridge structures into a bilayer MXene/paraffin wax composite, the actuator enables controllable and complex shape transformations, offering new possibilities for soft robotics and intelligent devices.

Epilepsy affects millions of people worldwide, and roughly one-third of such patients continue to experience seizures despite medication. In a recent study, researchers from Gunma University have developed a 410-base pair compact genetic switch that selectively targets inhibitory neurons in the brain to restore the excitatory–inhibitory balance. This compact switch can be delivered using viral delivery vectors, enabling effective seizure suppression across multiple epilepsy mouse models while preserving the capacity of the therapeutic genes.