This study develops a novel bismuth layer-structured 0.3Na_0.5Bi_2.5Nb₂O₉-0.7Bi₃Ti_1-x(W_1/3Cr_2/3)_xNbO₉ solid solution via a solid-state reaction method. By B-site (W, Cr) co-doping, the optimized x=0.04 ceramics achieve a remarkable piezoelectric constant (d₃₃=20.3 pC/N) alongside a high Curie temperature (T_C=845.9 ^oC). The synergistic effect of [Nb/Ti]O₆ octahedral distortion and (CrTi'-VO∙∙) defect dipole formation significantly enhances domain stability while effectively suppressing the oxygen vacancy concentration. Consequently, the material exhibits superior high-temperature resistivity (7.3×10⁷ Ω·cm at 500 °C) and excellent thermal stability, retaining 93.1% of its initial d₃₃ after annealing at 600 °C. These findings highlight its exceptional potential for advanced high-temperature piezoelectric sensors.

Harvesting distributed wind energy in complex environments remains a major challenge. Researchers from China University of Geosciences (Beijing), Tsinghua University, and the Beijing Institute of Nanoenergy and Nanosystems proposed a vortex-induced vibration-based triboelectric nanogenerator (VIV-TENG). The device can collect wind energy from all directions and operate efficiently under low wind speeds and high humidity. At 3.5 m/s, it delivers an average output power of 49.5 μW, demonstrating its potential for powering small electronic devices and enabling self-powered systems in urban environments.

Iron-nickel catalysts are widely used for alkaline water electrolysis, but their long-term stability is limited by iron dissolution under oxidative conditions. Researchers have now developed a ligand-engineered FeNi metal-organic framework that transforms into a 4,4'-biphenyldicarboxylic acid (BPDC)-functionalized oxyhydroxide (FeNiOOH-BPDC) catalyst during operation. The organic ligand strengthens Fe-O bonding, suppresses metal leaching, and enables continuous oxygen evolution at industrial current densities for more than 3000 hours. The work provides a new strategy for designing durable, low-cost catalysts for large-scale green hydrogen production.

Brain-computer interfaces are moving beyond simple device control toward more dexterous robotic assistance. A new review highlights how noninvasive neural decoding, deep learning, and shared autonomy are helping robotic devices better interpret user intent, reduce control burden, and support future assistive technologies for people with motor impairments and the general population.

A Chinese Medical Journal study reveals Rhein, a rhubarb-derived compound, protects against severe acute pancreatitis-associated intestinal injury by activating peroxisome proliferator-activated receptor γ (PPARγ) to suppress NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome and reprogram macrophage polarization from pro-inflammatory M1 to anti-inflammatory M2 phenotype. Rhein restored intestinal barrier integrity and reduced endotoxemia—effects abolished by PPARγ inhibition. This identifies the PPARγ/NLRP3/macrophage axis as a promising therapeutic target for SAP complications.

 Researchers have developed a microwave‑assisted hydrothermal method for growing dense, uniform NaA zeolite coatings on silicon carbide (SiC) foams. The strong microwave absorption of SiC induces localized overheating, directing crystal growth onto the support surface while suppressing unwanted nucleation in the solution. A silica sol pretreatment effectively addresses support dissolution and enables rapid construction of a dense zeolite layer, achieving a mass variation of 1.11 after only five cycles. The resulting coating exhibits excellent adhesion, with a minimal mass loss of 0.62 % under rigorous ultrasonic and solvent‑flushing tests. In aldehyde‑ketone condensation reactions, the structured catalyst maintains a high yield (>90 %) over three cycles, offering a promising route to reduce raw material consumption.