Results 161 to 170 of about 1,027,169 (250)

Agile Free‐Form Signal Filtering and Routing with a Chaotic‐Cavity‐Backed Non‐Local Programmable Metasurface

open access: yesAdvanced Science, EarlyView.
A multi‐parameter‐tunable, all‐metallic, low‐loss, wave‐chaotic cavity enables a frequency‐insensitive (over a 7 GHz bandwidth) technique to synthesize desired transfer functions within smaller windows to high accuracy and with complete reconfigurability of shapes and center frequencies.
Fabian T. Faul   +4 more
wiley   +1 more source

A Bifunctional Fibrous Scaffold Implanted with Amorphous Co2P as both Cathodic and Anodic Stabilizer for High‐Performance Li─S Batteries

open access: yesAdvanced Science, EarlyView.
An amorphous Co2P‐embedded porous carbon nanofiber membrane (A─Co2P/PCNF) via electrospinning/in situ phosphorization is developed to serve as the dual‐electrode stabilizer for Li─S batteries. The amorphization strategy enables more exposed undercoordinated Co sites with optimized d‐band centers, enhanced LiPSs adsorption/catalysis, and lithiophilicity‐
Gang Zhao   +9 more
wiley   +1 more source

Self‐Propelled In Situ Polymerized Nanoparticles Activating the STING Pathway for Enhanced Bladder Cancer Immunotherapy

open access: yesAdvanced Science, EarlyView.
A self‐propelled nanomedicine delivery system forms DMCU nanoparticles in the bladder via in situ polymerization of dopamine hydrochloride, Mn2+, cGAMP, and urease. The urease‐driven propulsion enhances retention and drug delivery. These nanoparticles activate the STING pathway, stimulating dendritic cells and T cells to boost anti‐bladder cancer ...
Lei Peng   +9 more
wiley   +1 more source

Variable‐Range Hopping Conduction in Amorphous, Non‐Stoichiometric Gallium Oxide

open access: yesAdvanced Electronic Materials, EarlyView.
The combination of experimental evidence, ab‐initio DOS calculations and quantitative modeling by kinetic Monte Carlo simulations reveals: Variable‐range hopping (VRH) is the dominant electron conduction mechanism in a‐GaOx (x = 0.8 to 1.0), even at room temperature, which leads to a new, fundamental understanding of a‐GaOx‐based electronic devices ...
Philipp Hein   +7 more
wiley   +1 more source

Strain Fluctuations Unlock Ferroelectricity in Wurtzites

open access: yesAdvanced Electronic Materials, EarlyView.
In this study, Steven M. Baksa and his colleagues unveiled the atomistic mechanisms of ferroelectric reversal in Mg‐substituted ZnO where Mg cations induce strain fluctuations, triggering ferroelectricity via sequential reversal. They also demonstrate that Zn:Mg composition gradients along the polar axis promotes polarization reversal, providing new ...
Steven M. Baksa   +10 more
wiley   +1 more source

Freestanding Membranes of Titania Nanorods, Photocatalytically Reduced Graphene Oxide, and Silk Fibroin: Tunable Properties and Electrostatic Actuation

open access: yesAdvanced Electronic Materials, EarlyView.
Graphene‐based materials have shown great potential for the development of hybrid MEMS devices. This study describes the facile fabrication of freestanding membranes from graphene oxide, titania nanorods, and silk fibroin. By utilizing the photocatalytic activity of the titania nanorods, the mechanical and electrical properties of the membranes can ...
Finn Dobschall   +6 more
wiley   +1 more source

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