Results 221 to 230 of about 288,178 (258)

MagPiezo: A Magnetogenetic Platform for Remote Activation of Endogenous Piezo1 Channels in Endothelial Cells

open access: yesAdvanced Functional Materials, EarlyView.
MagPiezo enables wireless activation of endogenous Piezo1 channels without genetic modification using 19 nm magnetic nanoparticles and low‐intensity magnetic fields. It generates torque forces at the piconewton scale to trigger mechanotransduction in endothelial cells, standing as a novel platform to interrogate and manipulate Piezo1 activity in vitro.
Susel Del Sol‐Fernández   +7 more
wiley   +1 more source

Dual‐Site Ru Single‐Atoms and RuP Nanoclusters on N, P, and B Co‐Doped Porous Carbon for Efficient Alkaline HER and AEM Water Electrolysis

open access: yesAdvanced Functional Materials, EarlyView.
Ru single atoms and RuP nanoclusters are co‐anchored in N, P, and B co‐doped porous carbon nanospheres via in situ carbonization/phosphidation of a boronate polymer precursor. RuP activates water, while nearby Ru single atoms accelerate H2 formation through H* transfer. The catalyst delivers low overpotential and high durability in alkaline HER and AEM
Xiaohong Wang   +13 more
wiley   +1 more source

Prenucleation Species Dictate Foreign Ion Incorporation in the Biomineral Precursor Amorphous Calcium Carbonate

open access: yesAdvanced Functional Materials, EarlyView.
ACC forms via aggregating prenucleation clusters that gatekeep its chemical composition. Ion identity steers the path: Ba and Sr substitute Ca in clusters, thereby inhibiting nucleation, with a dose‐dependent switch of Sr to induction. Mg partitions into Mg‐rich and Mg‐poor clusters; the latter form ACC, expelling Mg.
Qianyu Zhao   +9 more
wiley   +1 more source

Spin‐Dependent Generation of Surface‐Bound Radicals Toward Selective and Long‐Lasting Water Purification

open access: yesAdvanced Functional Materials, EarlyView.
This study develops a novel atomic engineering strategy to fine‐tune the spin state of α‐Fe2O3 catalysts toward a medium‐spin state, thereby modulating peroxymonosulfate activation and selectively yielding surface‐bound radicals. Compared with free radicals, surface‐bound radicals exhibit moderated oxidation potential, extended lifespan, surface ...
Shuyu Wang   +7 more
wiley   +1 more source

Poly(lactic‐co‐glycolic acid) Nanoparticles for IL‐12 Self‐Amplifying RNA Delivery in Glioblastoma Models

open access: yesAdvanced Functional Materials, EarlyView.
xxxx. ABSTRACT Glioblastoma (GBM) remains one of the most lethal brain cancers, with median survival rarely exceeding 15 months after diagnosis. Interleukin‐12 (IL‐12) is a potent immunostimulatory cytokine capable of reshaping the tumor microenvironment (TME), yet its clinical translation is hindered by systemic toxicity and short half‐life. RNA‐based
Fatima Hameedat   +11 more
wiley   +1 more source

Color Routing and Beam Steering of Single‐Molecule Emission with a Spherical Silicon Nanoantenna

open access: yesAdvanced Functional Materials, EarlyView.
We experimentally demonstrate broadband directional emission from single molecules using a single spherical silicon nanoparticle assembled via DNA origami. By varying nanoparticle (NP) size and emitter position, we achieve unidirectional emission, beam steering, and color routing at the nanoscale, revealing modal interference as the underlying ...
María Sanz‐Paz   +9 more
wiley   +1 more source

Breathable Graphene Oxide‐Polymer Composite Membranes With Two‐Step Barrier Mechanism Against Nerve Agents

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim   +6 more
wiley   +1 more source
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Extrato de Açaí na análise do pH no Solo

Anais da Semana de Integração: Ensino, Pesquisa e Extensão da UFVJM, 2022
O ensino de Físico-Química vem sofrendo transformações didático-pedagógicas. A desmotivação de estudantes, falta de atividades experimentais, além de infraestrutura para sua execução, têm gerado um ...
Luciano Soares Pedroso   +2 more
openaire   +1 more source

DISTRIBUIÇÃO ESPACIAL DO pH E CONDUTIVIDADE ELÉTRICA EM UM SOLO ALUVIAL NO RIO GRANDE DO NORTE

AGROPECUÁRIA CIENTÍFICA NO SEMIÁRIDO, 2012
A cultura do arroz irrigado é a principal atividade agrícola da região do Vale do Apodi, sendo cultivados com irrigação por inundação, nos mais diversos sistemas de plantio. O objetivo deste trabalho foi o de estudar a variabilidade espacial das variáveis de pH e CE, em um solo de origem aluvial no Rio Grande do Norte, utilizando-se técnicas de ...
Herlon Bruno Ferreira Barreto   +4 more
openaire   +1 more source

ESTUDO DA VARIAÇÃO DO PH AO LONGO DO TEMPO EM DOIS SOLOS DO DISTRITO FEDERAL MELHORADOS COM CAL

Anais da 49a Reunião Anual de Pavimentação - RAPv
A formação mineralógica de latossolos, geralmente ácidos, são propícios para reagirem quimicamente com materiais básicos, como a cal, gerando novos minerais que melhoram as suas propriedades mecânicas e podem compor as subcamadas dos pavimentos flexíveis.
PAULO COSTA FERNANDES   +3 more
openaire   +1 more source

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