This study designs a phosphorus-doped vacancy regulation and phase interface engineering strategy to fabricate a MOF-derived metal selenide@carbon dual-matrix material, denoted as P-NiSe₂/CoSe₂@NC (PNCS). By optimizing the phosphorus source doping ratio and calcination temperature, the optimal electromagnetic wave absorption mechanism is explored. The results demonstrate that through iterative optimization of doping concentration and thermal conditions, the material achieves a synergistic balance between defects and heterogeneous interfaces, leading to superior electromagnetic wave absorption performance. At a matching thickness of only 2.1 mm, an effective absorption bandwidth of 7.04 GHz is attained, and the entire X-band and Ku-band can be covered within a controllable thickness of 2.6 mm, showing significantly enhanced performance compared to analogous samples. The “dual-core driven” strategy, combining oxygen vacancies and selenide heterointerfaces, optimizes dielectric relaxation and polarization loss, offering new insights for the development and application of next generation high-efficiency electromagnetic wave absorbing materials.

Tidal currents flood and ebb with the tide, but their motion does not average to zero everywhere over a tidal cycle. 

We present a photonic integrated circuit composed of two coupled photonic quantum memristors with crossed feedback. The input is generated by a room-temperature single-photon source based on a silicon-vacancy color center in a nanodiamond. The input–output relations exhibit higher nonlinearity and memory effects compared with a single photonic quantum memristor: these new features make our network especially suited for reservoir computing. Finally, we experimentally use our system in temporal series predictions.

A recent review outlines major advances in hydrogel-based strategies for musculoskeletal therapy. Through refined material design and strengthened mechanical performance, hydrogels can mimic key extracellular matrix features while enabling localized and controlled delivery of drugs, cells, and other bioactive cues. They can also be engineered into clinically relevant formats, including injectable systems, scaffolds, patches, and adhesive sealants, supporting applications across bone and cartilage repair, osteoarthritis management, disc regeneration, tendon healing, and dural repair. 

A research team set out to discover how the apparent temperature, or “feels like” temperature, over the ocean differs from the apparent temperature on land and found that a pronounced land-sea contrast is evident.

We study the ground state of the spin-1/2 XXZ antiferromagnet on the triangular lattice in the easy-axis regime using density-matrix renormalization group with spiral boundary conditions. The ordered state remains a nontrivial three-sublattice Y-like structure over a wide anisotropy range. Extrapolation shows incomplete sublattice polarization even in the Ising limit. Energy comparisons demonstrate that the Y state is favored over the up-down-down state, stabilized by quantum fluctuations from the degenerate Ising manifold.

Many vitreoretinal disorders, including retinal detachment (rhegmatogenous, exudative, or tractional), macular holes, proliferative vitreoretinopathy, diabetic retinopathy, and vitreous hemorrhage, often require vitrectomy with retinal repair, followed by intraocular tamponade to stabilize the retina and preserve ocular integrity. The tamponade agents most used in clinical practice are expansile gases and silicone oil. Although these materials can effectively support postoperative retinal reattachment, they remain limited in terms of long-term stability and biosafety. Complications such as cataract formation, elevated intraocular pressure, intraocular inflammation, and retinal injury associated with silicone oil emulsification may still occur. To address this challenge, Prof. Jianhai Yang and Prof. Wenguang Liu (Tianjin University), together with Prof. Xiaorong Li and Prof. Xiaoli Xing (Tianjin Medical University Eye Hospital) developed an injectable zwitterionic polymer hydrogel based on poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC).