Results 191 to 200 of about 626,595 (282)

Cross‐Linking Mass Spectrometry of the Antimicrobial Peptides Magainin 2 and PGLa Reveals Heterodimerization in Micellar Medium

open access: yesRapid Communications in Mass Spectrometry, EarlyView.
ABSTRACT Rationale In this study, we applied cross‐linking mass spectrometry (XL‐MS) to characterize the oligomeric states of a PGLa/magainin 2 mixture and gain insight into the heterodimerization previously suggested in the literature. Both peptides have shown a synergistic enhancement of activity when tested in antimicrobial assays; however, the ...
Emilie Hirschler   +7 more
wiley   +1 more source

Electron Transfer Dissociation and Synchrotron UV Photodissociation of Trapped Sodiated Ions Produced From Polyacrylates by Electrospray Ionization

open access: yesRapid Communications in Mass Spectrometry, EarlyView.
ABSTRACT Rationale Poly (acrylates)s can be distinguished from one another by the nature of their side chains. From model poly (acrylates)s, the purpose of this work was to evaluate the contribution of alternative activation techniques to the collisional activation, based on ion–ion and ion–photon interactions.
Inès Aloui   +5 more
wiley   +1 more source

Exploring the Fragmentation of Sodiated Species Involving Covalent‐Bond Cleavages for Metabolite Characterization

open access: yesRapid Communications in Mass Spectrometry, EarlyView.
ABSTRACT Rationale Electrospray (ESI), the most popular desorption/ionization technique used in mass spectrometry‐based metabolomics, generates both protonated and deprotonated molecules, as well as adduct ions, sodium being the most frequent monoatomic cation entering their composition.
Annelaure Damont   +9 more
wiley   +1 more source

Illegal Gold Mining in the Brazilian Amazon: Environmental Degradation in Yanomami Indigenous Lands, and Regulatory Failures

open access: yesSustainable Development, EarlyView.
ABSTRACT Illegal gold mining has emerged as a major sustainability threat in the Amazon, eroding Indigenous rights, forest integrity, and climate mitigation efforts. This study examines how international market incentives relate to the expansion of illegal mining and associated deforestation within the Yanomami Indigenous Territory (YIT) from 2008 to ...
Shirléia Lago Santos   +2 more
wiley   +1 more source

Imaging Methods for Analyzing Adhesion in Extrusion Coating

open access: yesSurface and Interface Analysis, EarlyView.
ABSTRACT Extrusion coating is a common method to produce materials for the packaging industry. One of the most important properties in extrusion‐coated structures is adhesion between the substrate and the coating. Analyzing adhesion of samples produced by extrusion coating in a standardized way can be challenging, and especially, quantitative data are ...
Elli Alanen   +5 more
wiley   +1 more source

Surface Science Insight Note: A Good Figure‐Of‐Merit Does Not Necessarily Yield Accurate Chemical Composition: Outcome of Mixed‐Metal Sulfate XPS Data Peak Fitting Using Nonlinear Least‐Squares Fitting of Peak Models

open access: yesSurface and Interface Analysis, EarlyView.
ABSTRACT The use of peak models and nonlinear least squares optimization, when applied to highly correlated signals without proper context, is shown to be inadequate for chemical state analysis. However, the use of peak models with physically motivated constraints and sufficient contextual information permits fitting of such models to spectra by ...
Neal Fairley, Jonas Baltrusaitis
wiley   +1 more source

Central Bank Digital Currencies, Financial Inclusion, and Privacy: A Normative Perspective

open access: yesSouthern Economic Journal, EarlyView.
ABSTRACT Central bank digital currencies (CBDCs) are a digital form of a nation's money, issued by its central bank. As opposed to other forms of digital money, such as electronic bank balances or cryptocurrencies, they are centrally managed legal tender.
Andrew Allison, Alexander William Salter
wiley   +1 more source

Presence of Nationally Banned Carbamates and Organophosphate Pesticides in Wild Carnivores, Southeastern Brazil

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT As top predators, terrestrial carnivores face great risk of pesticide exposure and serve as sentinels of environmental contamination. Additionally, terrestrial carnivores are frequently threatened by intentional or secondary poisoning with highly toxic compounds, such as carbamates and organophosphates.
Marina Pellegrino da Silva   +10 more
wiley   +1 more source

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