Results 161 to 170 of about 89,033 (345)

Surface Chemical Analysis of Plastic Materials by X‐Ray Photoelectron Spectroscopy: Understanding Weathering, Fragmentation and Contaminant Uptake in Marine Environments

open access: yesMacromolecular Materials and Engineering, EarlyView.
This Perspective demonstrates how X‐ray photoelectron spectroscopy (XPS) uncovers surface chemical changes in plastics, providing insight into weathering‐driven fragmentation and contaminant adsorption. The Perspective underscores XPS's pivotal role in elucidating fragmentation mechanisms, predicting pollutant–plastic interactions, and guiding ...
Tiziano Di Giulio   +2 more
wiley   +1 more source

Magnetic Properties of Ferritin at Different Levels of Degradation: Implications for MRI‐Based Iron Quantification in the Brain

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Ferritin's iron core exhibits complex magnetic properties, as suggested by magnetometry and Mössbauer spectroscopy, which remain incompletely understood. In particular, the antiferromagnetic inner core could influence the accuracy of iron quantification using MRI and raise concerns about postmortem validation studies involving degraded
Stefan Ropele   +8 more
wiley   +1 more source

A Novel Approach to Enamel Remineralization of White Spot Lesions Using Nanoparticles

open access: yesNano Select, EarlyView.
Nanotechnology serves as a transformative tool for improved enamel remineralization. Magnesium oxide (MgO) nanoparticles are biodegradable, biocompatible, and exhibit a robust antimicrobial effect against common oral pathogens, including Streptococcus mutans, Staphylococcus aureus, Enterococcus faecalis, and Candida albicans.
Ghada H. Naguib   +5 more
wiley   +1 more source

Comprehensive Surrogate Models for Predicting the Melt Conveying Characteristics of Channel Segments in High‐Performance Single‐Screw Extruders

open access: yesPolymer Engineering &Science, EarlyView.
Generalized analytical equations were developed that accurately predict the local pumping characteristics, viscous dissipation, and average shear rates in channels of both conventional and high‐performance single‐screw extruders. Applied within segmented extruder calculations, these models aid in screw design and process troubleshooting without the ...
Daniel Herzog   +3 more
wiley   +1 more source

Further studies of isolated photon production with a jet in deep inelastic scattering at HERA [PDF]

open access: green, 2018
ZEUS Collaboration   +99 more
openalex   +3 more sources

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