Results 201 to 210 of about 47,794 (286)

Insights Into Bifenthrin Stereoisomers and Their Regulatory Implications

open access: yesChemistryOpen, Volume 15, Issue 5, May 2026.
Bifenthrin is a pyrethroid insecticide with two stereogenic centers, generating four stereoisomers with distinct physicochemical and electronic properties. A combined crystallographic and density functional theory study, supported by Hirshfeld surface, quantum theory of atoms in molecules, natural bond orbital, and reactivity descriptor analyses ...
Nayara C. M. Santos   +7 more
wiley   +1 more source

Sustainable Ethanol‐Based Reversed‐Phase Liquid Chromatography for Determination of Diltiazem pKa and Quantification with Integrated Green and White Analytical Metrics

open access: yesChemistryOpen, Volume 15, Issue 5, May 2026.
A sustainable reversed‐phase liquid chromatography method is developed for diltiazem analysis and pKadetermination. The study integrates green and white analytical chemistry frameworks to evaluate environmental impact and practicality. The Environmental, Performance, and Practicality Index is utilized as a comprehensive, holistic tool for the ...
Zehra Üstün   +2 more
wiley   +1 more source

Triplet 4‐Nitrenemethyl‐Pyridine‐N‐Oxide: A Model Alkyl Nitrene Isolated in Cryogenic Matrices

open access: yesJournal of Physical Organic Chemistry, Volume 39, Issue 5, May 2026.
The simplest triplet alkyl nitrene bearing a pyridine‐N‐oxide moiety was generated by direct irradiation (λ > 350 nm) of the corresponding azide in an Ar matrix at 15 K. Quantum tunneling 1,2‐H shift to the corresponding imine is thermodynamically favorable but does not occur due to a high‐energy barrier (~36 kcal mol−1).
Cláudio M. Nunes   +5 more
wiley   +1 more source

A Review of Metal–Organic Framework (MOF) Based Active Food Packaging: Materials Selection, Cellulose Matrices Current Advances, Synthesis and Characterizations

open access: yesPackaging Technology and Science, Volume 39, Issue 5, Page 533-572, May 2026.
Active packaging offers an effective approach to extending food shelf life. This review summarizes the past decade of progress in metal‐organic framework (MOF)‐based active food packaging, highlighting material selection, characterization, challenges, and future prospects.
Belladini Lovely   +4 more
wiley   +1 more source

Effect of Pegcetacoplan on Aqueous Humor Proteome in Geographic Atrophy: A Prospective Exploration. [PDF]

open access: yesInvest Ophthalmol Vis Sci
Trivizki O   +11 more
europepmc   +1 more source

A Mass Spectrometric Approach: VOC Emissions, Fatty Acid Profile, and Bacteriota Identification of Spider Communities

open access: yesChemistrySelect, Volume 11, Issue 17, 5 May 2026.
ABSTRACT This study presents the first integrated analysis of volatile organic compounds (VOCs), fatty acids, and cultivable bacteriota in whole‐body spider specimens, combining HS‐SPME‐GC/MS, GC/MS, and MALDI‐TOF‐MS. A total of 100 spiders from five synanthropic species, Steatoda opiliones, S. bipunctata, S.
Stefania Garzoli   +2 more
wiley   +1 more source

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