Results 241 to 250 of about 1,036,062 (294)

Comprehensive Hydrogen Evolution Descriptors for Nonprecious Metal Oxide Electrocatalysts

open access: yesChemElectroChem, Volume 13, Issue 9, 5 May 2026.
25 kinds of Fe‐, Co‐, and Ni‐based oxides are investigated to unveil the comprehensive descriptor for electrocatalytic hydrogen evolution reaction (HER) in metal oxides. Their HER activities are affected by the number of d electrons of the catalysts; i.e., more and less d electrons are beneficial for Fe‐ and Ni‐based oxides, respectively.
Yuuki Sugawara   +6 more
wiley   +1 more source

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

open access: yesAdvanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
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

Multimodal Optical Imaging and Modulation with Simultaneous Electrophysiology Through Smart Dura in Non‐Human Primates

open access: yesAdvanced Science, Volume 13, Issue 25, 4 May 2026.
This study demonstrates multimodal integration in non‐human primates, combining large‐scale, high‐density electrophysiology using Smart Dura with optical techniques such as multiphoton imaging (MPI), photothrombotic lesioning, optical coherence tomography angiography (OCTA), wide‐field intrinsic signal optical imaging (ISOI), and optogenetics.
Nari Hong   +10 more
wiley   +1 more source

A BioLiving Periosteum Evokes Centripetal Regeneration in Challenging Bone Defects

open access: yesAdvanced Science, Volume 13, Issue 26, 8 May 2026.
Large bone defects often suffer from insufficient central healing. This study engineers a BioLiving periosteum that mimics the native structure. It sequentially delivers remote chemical cues and contact physical cues in a signaling‐relay manner, effectively recruiting and guiding endogenous cells toward the defect center.
Yang Shi   +12 more
wiley   +1 more source

Genetic and Phenotypic Features of the Five Known Polyaminopathies: A Critical Narrative Review

open access: yesAmerican Journal of Medical Genetics Part A, Volume 200, Issue 5, Page 993-1003, May 2026.
ABSTRACT Polyaminopathies are a recently described family of rare genetic neurodevelopmental disorders. Polyaminopathies disrupt the biosynthesis of the primary polyamines: putrescine, spermidine, and spermine. Snyder–Robinson syndrome results from hemizygous loss‐of‐function variants in the spermine synthase (SMS) gene, resulting in decreased or ...
Elizabeth A. VanSickle   +26 more
wiley   +1 more source

When Does Alzheimer's Disease Start? Plasma Aβ42/40 Assays Show Steep Changes at Aβ‐PET Centiloid 15, Mean Age of 66 Years

open access: yesAnnals of Neurology, Volume 99, Issue 5, Page 1327-1342, May 2026.
Objective Sporadic late‐onset Alzheimer's disease (AD) is characterized by a long pre‐clinical phase where amyloid‐beta (Aβ) and tau begin to accumulate in the brain. The primary objective was to determine the age at which AD starts by finding the average population age when both positron emission tomography (PET) Aβ (Aβ‐PET) and plasma Aβ42/40 become ...
Rodrigo Cánovas   +29 more
wiley   +1 more source

Ba2+‐Selective and pH‐Stable Dibenzo‐18‐Crown‐6 Equipped BODIPYs with Pronounced Fluorescence Enhancement in Aqueous Solution

open access: yesChemPhotoChem, Volume 10, Issue 5, May 2026.
Herein, we report on a Ba2+ selective, Ba2+ sensitive, and pH stable fluorescent probe with a high photostability in water (cf. TOC). This fluorescent probe is equipped with a dibenzo‐18‐crown‐6 as a highly selective Ba2+ ionophore and a tetramethylated BODIPY fluorophore.
Thomas Schwarze   +7 more
wiley   +1 more source

Detection of Toxic Gases and Volatile Organic Compounds Using Highly Adsorptive Nanomaterials: A Comprehensive Assessment

open access: yesEcoMat, Volume 8, Issue 5, May 2026.
This review highlights how nanomaterials with high adsorption capacities including carbon‐based structures, transition metal oxides, 2D layers, and zeolites enable sensitive and selective detection of toxic gases and VOCs. Their tailored properties and sensing mechanisms drive the development of next‐generation gas sensors for environmental and ...
Hamdy A. Ismail   +9 more
wiley   +1 more source

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