Low-frequency radar waves, particularly in the P-band, present a significant stealth challenge due to the inherent tradeoffs among strong absorption, broad bandwidth, and ultra-thin thickness. These limitations arise from the conflict between structural thickness and wavelength, impedance-matching difficulties, and weakened loss mechanisms. To overcome these constraints, a new strategy for synergistic enhancement of the local field and electromagnetic loss field of metamaterials has been proposed. By employing metasurface structures for localfield enhancement, strong absorption is achieved at ultra-thin thicknesses. Furthermore, dielectric, magnetic, conduction, and structural resonance losses are integrated to enable strong, broadband absorption. Herein, a double-layer metasurface array is designed and integrated onto a polydimethylsiloxane/flake carbonyl iron highloss dielectric substrate. The resulting composite exhibits exceptional performance in the 1.77–2.85 GHz range at a thickness of only 3.78 mm (~ 0.022 λ), with an absorption rate exceeding 90%, and the absorption rate within the 1–6 GHz range can exceed 60%. It also demonstrates good mechanical flexibility and stability. The proposed localfield enhancement principle provides a new route to bypass the quarter-wavelength limitation of traditional absorbers, while its ultra-thin, broadband, and flexible integrable features highlight its potential for efficient conformal integration on complex curved surfaces.

Dihydrochalcones (DHCs)—the compounds that give sweet tea its characteristic sugar-like taste—are produced in extraordinary quantities in the tender leaves of Lithocarpus litseifolius, yet how plants actually make these molecules has remained a mystery.

Inspired by human skin, researchers proposed a skin-inspired intumescent flame-retardant and superhydrophobic coating with excellent self-extinguishing properties and robustness. Combining an outer superhydrophobic layer with an inner intumescent flame-retardant layer, this coating offers a new solution with exceptional mechanical durability and efficient flame retardancy for various combustible materials, showing broad application prospects in fields such as materials, pipe insulation, energy storage, and interior plastics.

The dramatic expansion of data volumes has placed high demands and challenges on optical information technology, and thus the reliable luminescence materials, especially their fatigue resistance during the storage and erasure process are highly considered. Solvent-driven switchable photoluminescence in Sc(DMSO)₆SbCl₆ exhibits promising potential for storing information, which offers a new route in the development of hybrid bimetallic halides for erasable information storage.

AIEgens typically feature dynamic molecular rotor modules, often exhibiting non-planar and conformationally flexible molecular structures. By incorporating AIEgens into the framework of Metal-Organic Frameworks (MOFs) as functionalized linkers, one can effectively overcome the geometric constraints inherent in traditional, rigid "static" linkers, while simultaneously circumventing the major bottleneck associated with traditional organic fluorophores—namely, their propensity for fluorescence quenching in the aggregated state. The self-assembly of dynamic Lanthanide Metal-Organic Frameworks (LnMOFs)—formed by the alternating linkage of lanthanide ions or clusters (serving as Secondary Building Units, or SBUs, and possessing exceptional photophysical properties and fingerprint emission spectra) with dynamic molecular rotors (serving as linkers)—opens up new horizons for the construction of novel, intelligent luminescent materials. The degree of twisting within the molecular rotors of the AIEgen ligands—and the consequent changes in energy levels resulting from conformational shifts—enables an adaptive "antenna effect" tailored to the distinct energy levels of various lanthanide ions, thereby facilitating the effective construction of intelligent multicolor and/or chromogenic materials.

A new review in Nano Research systematically details the latest advances in quantum dot (QD) technology for point-of-care testing (POCT). Through precise material engineering strategies, QDs can advance the development of various high-sensitivity sensing technologies. Although challenges remain in biosafety and device integration, the coordinated development of "greening, intellectualization, and integration" is driving quantum dot technology from the laboratory toward practical application.