Auxeticity‑by‑Assembly converts freeform photovoltaics from cut‑defined layouts to assembly‑defined systems. Standardized interlocking units generate negative‑Poisson‑ratio, reconfigurable architectures, while hinge regions are wired by selectively activatable AgNW–GO@EGaIn composite interconnects and a folding‑enabled interconnector layer. A decimeter‑
Seok Joon Hwang +15 more
wiley +1 more source
Failure Modes and Influencing Factors of Rubber O-Ring Seals in High-Pressure Hydrogen Environments. [PDF]
Lv Z, Yasin S, Shi J, Zeng S.
europepmc +1 more source
Robust Polymer Hydrogels Improve Electric‐Fish‐Inspired Batteries
ABSTRACT Electric‐fish‐inspired hydrogel batteries based on ion‐concentration gradients offer an attractive route to soft power sources; however, the poor mechanical properties of existing hydrogels limit device assembly and performance. Here, we report poly(ethylene glycol) methyl ether acrylate hydrogels that enable ion‐gradient batteries composed of
Nick Zahnd +5 more
wiley +1 more source
Feasibility of intratracheal tracheostomy sealing: anatomical adaptation and biocompatibility of a second-generation prototype in cadaveric and porcine models. [PDF]
Kraghede RE +8 more
europepmc +1 more source
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia +7 more
wiley +1 more source
Analysis of the long-term sealing integrity of cement sheath in CO<sub>2</sub> storage wells. [PDF]
Zhao K +5 more
europepmc +1 more source
Metachromatic Butterfly Bile Pigments for Multi‐Level Optical Security Films
Bio‐derived optical security materials are manufactured by embedding butterfly‐based pigments in polymer films. Tunable color and fluorescence responses arise from concentration‐controlled metachromasy, enabling spatially encoded patterns with distinct visible, UV‐active, and spectral signatures.
Limin Wang, Bodo D. Wilts
wiley +1 more source
Dual-parameter risk stratification based on device landing zone calcification and aortic annular perimeter for paravalvular regurgitation after self-expanding TAVR. [PDF]
Shu J +8 more
europepmc +1 more source
Preparation and Performance Evaluation of Gelled Composite Plugging Agent Suitable for Fractured Formation. [PDF]
Liu K, Lv K, Wang W, Ren T, He J, Ren Z.
europepmc +1 more source

