Developing multifunctional electromagnetic wave absorbing materials capable of operating in complex environments has become crucial for electromagnetic protection. Introducing dielectric ceramic materials with high thermal stability and oxidation resistance into carbon matrices has emerged as an effective strategy to address the high-temperature failure of carbon-based absorbers. In this study, a novel hollow SiC/C nanofiber aerogel was successfully constructed via a hydrothermal-carbothermal reduction method. The material exhibits an ultralight nature, good elasticity, fatigue resistance, high-temperature stability, and excellent electromagnetic wave absorption performance.

Heterojunction structures are favored for constructing photoelectrochemical ultraviolet photodetectors (PEC UV PDs), whereas lattice mismatches impede their optoelectronic performance. This work presents a novel homojunction consisting of two-dimensional (2D) In₂O₃ nanosheets (NS) and three-dimensional (3D) In₂O₃ microcubes (MC) with a suitable energy band alignment. 2D In₂O₃ NS not only shows an enlarged bandgap due to the quantum confinement effect but also effectively upshifts the conductive band and Fermi level stemming from the oxygen vacancy demonstrated by the theoretical simulation and experimental results. The photogenerated carrier dynamic of In₂O₃ photoanodes is boosted by the 2D-3D homojunction with a built-in electric field and more electrochemically active sites, leading to higher photogenerated carrier separation efficiency, faster interfacial charge transfer, and better self-powered capability. The In₂O₃ 2D-3D homojunction PEC UV PDs exhibit outstanding self-powered deep-UV photoresponse at 0 V, with an ultrahigh responsivity of 316.5 mA/W for 254 nm light, a fast response speed of 15/15 ms, high detectivity of 1.12 × 10¹² Jones, and an outstanding UV-vis rejection ratio of 1507, surpassing most recorded PEC UV PDs. This work demonstrates the pivotal role of morphology-controlled homojunction in modulating photogenerated carrier dynamics and offers a new strategy for designing high-performance PEC devices.

A recently published article in Nature Communications by Dr. Qiang Su and colleagues reports a novel molecular pathway that intensifies myocardial injury following coronary microembolization (CME).

Researchers in Beijing have generated a transcriptomic atlas comparing human fetal tooth germs from the upper and lower jaws at the critical cap stage of development. Previous studies of tooth development mainly focused on mandibular teeth, while this study uncovers gene expression patterns of maxillary teeth and their differences from mandibular tooth germs.

The instability of anode catalysts during the oxygen evolution reaction (OER) is a central obstacle to commercializing proton exchange membrane (PEM) electrolyzers. In the highly oxidative and acidic anode environment, catalysts suffer from dissolution, mechanical detachment, and impurity-driven degradation—failure modes that are tightly interconnected and cannot be solved through material optimization alone. This perspective evaluates these coupled degradation pathways and the limitations of current material, structural, and system-level strategies. We argue that durable acidic OER requires mechanistic insight under realistic operating conditions and the coordinated advancement of catalyst design, operando characterization, engineering improvements, and data-driven modeling. Such an integrated framework is essential for developing stable anodes and enabling large-scale, long-lifetime PEM electrolyzers.

Electronic devices face dual challenges of electromagnetic wave (EMW) interference and heat accumulation, yet achieving simultaneous EMW absorption and thermal conductivity in hexagonal boron nitride (h-BN) remains difficult due to its electrical insulation. Here, a simple and scalable mechanochemical strategy is developed to modify inert h-BN flakes (BNFs) with liquid metal (LM), activating their surface to generate abundant interfacial polarization centers. The optimized H-BNF@LM composite delivers outstanding EMW absorption with a minimum reflection loss of -48.4 dB and an effective absorption bandwidth of 5.76 GHz. Moreover, when integrated into an aramid nanofiber (ANF) matrix, the composite film exhibits a thermal conductivity nearly five times higher than that of pure ANF film. Beyond superior EMW absorption and thermal management, the films demonstrate excellent flexibility and remarkable flame retardancy, ensuring reliable operation even under harsh conditions. This work provides an efficient route for designing multifunctional composites suitable for next generation electronics.

A research team from Lanzhou University, China, has improved tree-ring simulations of a widely used forest growth model, 3-PG, by adding a carbon storage component. The new model version significantly enhances the model’s ability to simulate variations in both tree-ring widths and stable carbon isotope (δ¹³C). The upgrade addresses a key limitation in previous versions and provides a more physiologically accurate picture of how trees grow and store carbon over time.