Results 101 to 110 of about 19,330 (264)
This work introduces an ultrafast thermal shock strategy to synthesize a CuNiSnLa medium‐entropy metallic glass (MEMG). The rapid heating and cooling process generates a robust, highly active catalyst for electrocatalytic nitrate reduction to ammonia (NRA).
Hongbo Chen +7 more
wiley +1 more source
Mechanisms of Degradation in Li‐Ion Batteries Under Low Temperature Exposures
Low‐temperature exposures, or freeze‐thaw cycles, are observed to significantly accelerate the degradation of Li‐ion batteries. A combination of electrolyte phase separation and mechanochemical stress leads to reversible and irreversible performance losses.
Mihir Ojha +12 more
wiley +1 more source
A meniscus‐guided microtransfer molding strategy enables scalable fabrication of grid‐type molecular martensite films with b‐axis‐correlated preferential texture. Sequential growth across microchannel intersections creates structurally continuous grids and robust thermoelastic actuation (∼11% strain, > 50 cycles, maximum force density: 7.1 × 109 N m−3).
Sooyeon Ra +15 more
wiley +1 more source
Interaction‐Driven Assembly Pathways in Heterogeneous Active Microrobotic Systems
Peanut‐ and cube‐shaped light‐powered microrobots exhibit distinct magnetic and photocatalytic responses that determine their heterogeneous self‐assembly. In the dark, magnetic dipole interactions drive colloidal copolymerization with cubes acting as nucleation centers, whereas under light irradiation, phoretic interactions compete with magnetic ...
Domenico Calabrò +5 more
wiley +1 more source
Micro/nano-mechanics of cartilage with osteoarthritis
This study aimed to characterize the in-situ mechanical property and morphology of individual collagen fibril in osteoarthritic (OA) cartilage using indentation-type atomic force microscopy (IT-AFM). The specimens with intact articular cartilage (AC), mild to severe degenerated OA cartilage were collected with informed consent from the ...
openaire +2 more sources
Molecular rotors are fluorescent molecules that are sensitive to viscosity and temperature variations in the environment. They exhibit a direct correlation between fluorescence and viscosity within Newtonian fluids. However, this correlation becomes less straightforward in complex systems.
Flavia Di Scala +6 more
wiley +1 more source
Intrinsic Interfacial Energy Alignment Enables ETL‐Free Organic Solar Cells
Molecular orientation of the small‐molecule donor BTR‐Cl induces a vacuum‐level shift that pins the Fermi level at ∼4.4 eV at the active layer/Ag interface, enabling Ohmic contact formation without an electron transport layer. This strategy is extended to ternary PM6:Y6:BTR‐Cl devices, achieving an ETL‐free efficiency of 18.6% with enhanced operational
Heng Liu +6 more
wiley +1 more source
Hybrid Organic/Inorganic Nano-I-Beam for Structural Nano-mechanics. [PDF]
Elmoselhy SAM.
europepmc +1 more source
An Edible Chitosan‐Based Acoustic Sensor for Sound‐Responsive Actuation in Edible Robots
This study introduces an edible acoustic sensor for robotic food and edible robotics. Built from a chitosan piezoelectric film between gold electrodes, the sensor enables acoustic communication through ON/OFF keying. Integrated into an edible robot with pneumatically actuated arms and neck, it responds to high‐frequency tones.
Valerio Francesco Annese +8 more
wiley +1 more source
NMM 2024 Nano & Macro Mechanics
The 15th conference Nano & Macro Mechanics was held in Prague, in September 12, 2024. The main objective of the conference is to bring together researchers, students and engineers devoting their work to comuting and experimental mechanics in ...
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