Results 51 to 60 of about 179,142 (235)
ABSTRACT This study demonstrates that weak magnetic fields (16–40 mT) increase the efficiency of the hydrogen evolution reaction (HER) in electrocatalysts based on non‐fullerene acceptor (NFA) derivatives IT‐4Cl and Y6. Electrochemical measurements reveal that the application of the magnetic field reduces the onset potential and increases the current ...
João Paulo Araujo Souza +7 more
wiley +1 more source
Como demonstra o conjunto de temas elencados em artigo especial nesta edição, a COVID-19 foi o alvo de importantes trabalhos conduzidos por pesquisadores do Instituto Militar de Engenharia (IME). Foram construídos painéis de monitoramento e simulações da
Revista Militar de Ciência e Tecnologia
doaj +2 more sources
Layered Nanoporous Platforms for SERS Sensing
Here, we present a detailed investigation of the SERS performance of layered nanoporous metals. The controlled deposition of well‐defined, stacked porous layers enabled a systematic analysis of the effects of multimetallic systems in SERS experiments. Numerical models are also used to support the experimental findings.
Yanqiu Zou +18 more
wiley +1 more source
This study formulated a 5Y‐PSZ zirconia paste for extrusion‐based additive manufacturing via direct ink writing, producing dense ceramic structures for dental applications. A colloidal approach with 47 vol% nanometric powder and tailored additives optimized rheology and printability.
Juliana de Freitas Gouveia Silva +5 more
wiley +1 more source
3D Printed PEDOT:PSS‐Based Lattice Pressure Sensors With Tunable Electromechanical Response
poly(3,4‐ethylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS)‐based architected lattices are fabricated via single‐step Digital Light Processing (DLP) printing for tunable pressure sensing. Structural design variations allow precise control of sensitivity and range, while integrated conductivity eliminates post‐processing.
Ozan Karakaya +9 more
wiley +1 more source
Não é somente o setor industrial brasileiro que está sendo desafiado a evoluir e desenvolver-se tecnologicamente, antes faz parte de um movimento mundial de aprimoramento tecnológico das estruturas produtivas.
Departamento de Tecnologia Fiesp/Ciesp
doaj
Record Performance in Vertically Stacked, Solution‐Processed ZTO Schottky Diodes
Schottky diodes based on solution processed sustainable zinc—tin–oxide thin films present an eco‐friendly and versatile alternative to conventional CMOS based technologies. Beyond state‐of‐the‐art performance for vertically stacked solution‐based oxide diodes was achieved, including rectification ratios exceeding nine orders of magnitude, and intrinsic
Carlos Silva +10 more
wiley +1 more source
An Accessible Microfluidic Platform for the Generation of Polarized Brain Organoids
This study presents an accessible double‐gradient microfluidic device that enables controlled morphogen delivery and spatially polarized differentiation in brain organoids. By integrating a pump‐free design and stable fabrication method, the platform generates dorsal–ventral neuronal asymmetry, offering a reproducible and versatile approach to model ...
Daniel Pérez‐Calixto +6 more
wiley +1 more source
Left: Illustration of the glass & nanostructures system and the NIR emission at 1.5 µm, where the colored spheres represent the Er3+ ions within the doped glass. Right: Representation of the Stark splitting of the 4I13/2 and 4I15/2 manifolds of the Er3+, illustrating how the plasmonic modes facilitate the emission from the broader Stark manifold ...
Gaston Lozano Calderón +5 more
wiley +1 more source

