Results 161 to 170 of about 846 (244)

Supersampled Scanning Transmission X‐Ray Microscopy for High‐Resolution Vibration‐Independent Time‐Resolved Imaging

open access: yesSmall, EarlyView.
ABSTRACT Scanning transmission x‐ray microscopy (STXM) is a nanoscale imaging technique that can utilize several powerful contrast mechanisms for the quantitative mapping of chemical and physical materials properties. Spatial resolutions down to 7 nm at the soft x‐ray energy range have been demonstrated.
Simone Finizio   +6 more
wiley   +1 more source

Revealing Nafion‐Induced Copper Modifications by Combining In Situ and Ex Situ X‐Ray Absorption Spectroscopy

open access: yesSmall, EarlyView.
This work elucidates that Nafion alters Cu‐based CO2RR catalysts by promoting partial Cu dissolution and stabilizing Cu2+ species through coordination with sulfonate (‐SO3−) groups. Combining in situ Cu L‐edge with ex situ Cu K‐edge XAS measurements, the study highlights how Nafion primarily modifies the nanoparticle surface, while less oxidized Cu ...
Ilargi Napal Azcona   +10 more
wiley   +1 more source

Seeded‐Growth of ZIF‐8 onto Magnetic Nanoparticles: Smart Nanocarriers with Ultrahigh Drug Loading for AMF‐Triggered Release

open access: yesSmall, EarlyView.
We developed core‐shell iron oxide@ZIF‐8 magnetic‐MOF nanohybrids via a seeded growth method for magnetic hyperthermia‐triggered drug delivery. Cubic cores and thinner shells maximized heating. In‐situ doxorubicin encapsulation achieved 98% loading, better than surface encapsulation. Polymer coating improved stability.
Ana Maria Panaite   +11 more
wiley   +1 more source

Identity Entanglement: Rethinking Marginality through the Intersectional, Liminal, and Antithetical

open access: yesSymbolic Interaction, EarlyView.
While identity research has given sustained attention to marginality, intersectionality, and the effects of power on identity, the formal interactional dynamics through which identities are constituted remain limited. I present identity entanglement as a useful framework for better understanding and articulating the relational complexities of identity.
Jules Vivid
wiley   +1 more source

Exploring Distribution‐of‐Practice Effects on L2 Grammar Learning Among Older Adults

open access: yesTESOL Quarterly, EarlyView.
Abstract This paper examines the effects of practice distribution among older adult learners of L2 English, an understudied population in both second language acquisition and distributed practice research. Additionally, it considers the effects of proficiency and age.
Raquel Serrano, Anna Gawlikowicz
wiley   +1 more source

Cyanogenic Compounds, Physicochemical Parameters and Metals in Water From Cassava Processing Areas: A Study in the Brazilian Amazon, Using Multivariate Analysis

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT This study evaluated the water quality of artesian wells and effluents generated in cassava processing in a rural area of Bragança, Pará, with emphasis on physicochemical parameters, multielement composition, and cyanogenic compounds. The well water presented specific nonconformities, highlighting pH values below the recommended level and high
Alana Coêlho Maciel   +13 more
wiley   +1 more source

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