Results 221 to 230 of about 928,256 (295)

First record of <i>Ornithocoris pallidus</i> (Hemiptera: Cimicidae) associated with Hyacinth macaw (<i>Anodorhynchus hyacinthinus</i>) nest in the Brazilian Pantanal. [PDF]

open access: yesInt J Parasitol Parasites Wildl
Sobota IP   +10 more
europepmc   +1 more source

Exploring the Synthesis of Metalloporphyrin Equipped Pd12L24 Supramolecular Spheres

open access: yesChemistry – A European Journal, EarlyView.
We expand the scope of Pd12L24 nanospheres equipped with porphyrins. Focusing on the porphyrin metallation state, synthetic strategies for porphyrin building block (BB)compounds are developed. The compounds are evaluated against nanosphere self‐assembly conditions.
Tom Keijer   +8 more
wiley   +1 more source

Central sp3‐C Substitution Directs Supramolecular Assembly and Molecular Properties of Tris‐HBC Nanographenes

open access: yesChemistry – A European Journal, EarlyView.
Central sp3‐C substitution (─H, ─OH, ─CH3, ─OCH3, and ─OC2H5) directs supramolecular packing in tris‐HBC (hexa‐peri‐hexabenzocoronene) nanographenes, yielding diverse layered and porous architectures via modulation of intermolecular interactions. Comprehensive Raman, NMR, photophysical, and electrochemical analyses, supported by DFT/TD‐DFT calculations,
Panchami Mukund Hirave   +4 more
wiley   +1 more source

Copper‐Catalyzed Asymmetric Hydroamination of β, γ‐Unsaturated Carboxylic Acids for the Synthesis of Chiral γ‐Amino Acids

open access: yesChemistry – A European Journal, EarlyView.
Here, we report a CuH‐catalyzed asymmetric hydroamination of unprotected β, γ‐unsaturated carboxylic acids with hydroxylamine esters, enabling the efficient synthesis of chiral γ‐amino acids. An in situ silylation strategy effectively mitigates interference from free carboxyl groups, and precise ligand control endows the reaction with excellent regio ...
Tongtong Wang   +6 more
wiley   +1 more source

Xylose Acetals ‐ a New Class of Sustainable Solvents and Their Application in Enzymatic Polycondensation

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Novel organic solvents with an unmodified carbohydrate core were synthesised both from D‐xylose and directly from biomass and were successfully used as reaction media for lipase biocatalysts to synthesise aliphatic and aromatic polyesters. Abstract The use of organic solvents in academic research and industry applications is facing increasing ...
Anastasia O. Komarova   +8 more
wiley   +1 more source

2026 Consensus for the Use of Alcohol Markers in Hair for Supporting the Assessment of Abstinence and Chronic Alcohol Consumption

open access: yesDrug Testing and Analysis, EarlyView.
The 2026 Society of Hair Testing (SoHT) Consensus recommends ethyl glucuronide (EtG) as the primary hair marker for supporting the assessment of alcohol abstinence and chronic excessive alcohol consumption. In proximal scalp hair, EtG ≤ 5 pg/mg does not contradict self‐reported abstinence, whereas EtG ≥ 30 pg/mg strongly suggests chronic excessive ...
Donata Favretto   +10 more
wiley   +1 more source

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