Results 161 to 170 of about 4,492 (197)
Upconversion nanoparticle‐covalent organic framework core–shell particles provide enhanced contrast for optoacoustic imaging by leveraging the optical absorption of upconversion luminescence within the covalent organic framework matrix. Beyond their role as contrast agents, these particles enable customizable therapeutic agent loading and release, as ...
Dong Wook Kim+8 more
wiley +1 more source
Green Fabrication of Sulfonium‐Containing Bismuth Materials for High‐Sensitivity X‐Ray Detection
[(CH3CH2)3S]6Bi8I30 and [[(CH3CH2)3S]AgBiI5 are introduced as novel X‐ray detector materials with exceptional sensitivity and low detection limits. Produced via scalable, green synthesis, they remain highly durable after 9 months of storage and continuous X‐ray use, setting a new benchmark for medical imaging and outperforming many existing and ...
Allan Starkholm+11 more
wiley +1 more source
Synthetic Active Liquid Crystals Powered by Acoustic Waves
A fully synthetic active liquid crystal, energized by an acoustic field, is presented. This system exhibits active nematic behavior, tunable topological defect dynamics, and persistent hydrodynamic vortices at high activity levels. The material maintains stable properties while enabling precise activity control in a wide range.
Andrey Sokolov+3 more
wiley +1 more source
Laser micropatterning is presented as a promising technology in the search for autonomous dew water harvesting materials. Laser‐grooved metallic surfaces achieve simultaneously high infrared emissivity and superhydrophilicity, which gives them self‐cooling properties under atmospheric radiative deficit and the ability to condense water in an efficient ...
Pablo Pou‐Álvarez+7 more
wiley +1 more source
Challenges and Opportunities of Upconversion Nanoparticles for Emerging NIR Optoelectronic Devices
The special photo‐responsiveness of upconversion nanoparticles has opened up a new path for the advancement of near‐infrared (NIR)‐responsive optoelectronics. However, challenges such as low energy‐conversion efficiency and high nonradiative losses still persist.
Sunyingyue Geng+7 more
wiley +1 more source
Controlled Formation of Skyrmion Bags
This work demonstrates stabilization of complex magnetic skyrmion bags in ferromagnetic thin films through precisely engineered anisotropy defects using ion irradiation. The researchers achieve controlled field‐ and laser‐induced generation of skyrmionia, target skyrmions, and higher‐order skyrmion bags at room temperature. This reliable platform opens
Lisa‐Marie Kern+20 more
wiley +1 more source
Leveraging the strong metal‐support interaction effect, heterostructured interfaces in a Co‐based catalyst are designed to enable low‐temperature ammonia (NH3) decomposition. The induced tensile lattice strain within the core‐shell structure modulates d‐band center of Co, enhancing NH3 adsorption and facilitating N─H bond dissociation. Furthermore, the
Pei Xiong+10 more
wiley +1 more source
Unveiling the Aging Effect at the Interface of N719 Dye‐Sensitized Solar Cells
Iodide is incorporated into the N719 layer through two mechanisms: the known ligand exchange of NCS with I and a second yet unknown mechanism which significantly blocks the charge regeneration process of the N719 dye contributing to the cell degradation.
Sunita G. Adhikari+3 more
wiley +1 more source
This work explores the production of photocatalytic surfaces. Direct laser interference patterning (DLIP) is used to produce hierarchical oxidic surface structures on titanium sheet material in a single processing step. The surface topography and composition are discussed and the photocatalytic activity is assessed using methylene blue degradation ...
Tobias Fox+4 more
wiley +1 more source
Tailoring of Creep Regime Domain Wall Dynamics in Perpendicularly Magnetized Pd/Co/Pd Trilayers
Understanding magnetic domain wall (DW) dynamics is vital for improving the performance of heavy‐metal/ferromagnet‐based spintronic devices. This work manifests a fundamental investigation encompassing structural properties and magnetic DW motion in Pd/Co/Pd multilayers having perpendicular magnetic anisotropy.
Anurag Keloth+8 more
wiley +1 more source