Research Team from The Seventh Affiliated Hospital, Sun Yat-sen University Reports: Ce-Myricetin Nanoparticles Alleviate Inflammation and Multi-organ Damage through ROS Clearance and Macrophage Reprogramming in Sepsis

Harnessing solar energy to produce usable power is not new, but the technology is constantly evolving and improving. A major development in recent times is the use of perovskite solar cells (PSCs), which are low-weight, highly efficient, flexible solar cells using perovskite (typically a metal-halide material with a specialized structure) crystal structures to absorb light. Though a promising concept, improvements are necessary for PSCs to be able to reach their full potential. Researchers approach these improvements by introducing an additive, 1H-indole-3-carbohydrazide (1H-CBH) to effectively alleviate the main obstacle of PSCs, which are defects leading to loss of energy and efficiency in the cell.

There is a growing demand for high-performance THz shielding and absorbing materials to prevent electromagnetic interference (EMI) or pollution. Inspired by staggered cellular structures, a bioinspired strategy was proposed to fabricate multilayer-MXene (m-Ti₃C₂T_x)/cellulose nanofibrils (CNFs) aerogel frameworks with staggered stacking architectures via direct ink writing (DIW) 3D printing technology for enhanced THz shielding and absorption performance. The framework exhibits an excellent maximum reflection loss (RL) of 54.01 dB in the 0.5-3.0 THz range (100% qualified bandwidth) and a high absorption of 99.40%. It realizes a high green shielding index (g_s), the range of g_s > 9 that meets the standard for excellent green EMI shielding up to 2.5 THz. Meanwhile, it demonstrates high shielding effectiveness (SE) exceeding 40 dB across a broad gigahertz (GHz) frequency range from 3.9 to 18 GHz, particularly reaching an excellent 101.84 dB in the Ku band. This bionic strategy of staggered structures achieved via 3D printing technology demonstrates significant potential for fabricating high-design-freedom shielding components with excellent THz shielding and absorption properties.

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.