Results 151 to 160 of about 24,253 (308)
Advances in organic UV filters for sunscreens over the past decade
Photochemistry and Photobiology, EarlyView.Highlighted organic UV filter frameworks that have been described for sunscreens over the past decade divided into three groups: derivatives of or inspired by approved organic UV filters, natural product‐based compounds, and miscellaneous. Abstract Ultraviolet (UV) radiation is a major environmental factor in photoaging, erythema, and skin cancer ...
Gabriela Zanella Marcon +4 more
wiley +1 more source
Analytical Science Advances, Volume 7, Issue 1, June 2026.ABSTRACT This study investigated the prevalence of electronic smoking device (ESD) use and its associated behavioural and chemical risks among university students in Bahia, Brazil. A cross‐sectional survey was conducted with 355 students from public and private institutions through an online questionnaire between April and May 2023. Among participants,
Eduard F. Valenzuela +7 more
wiley +1 more source
Bent N‐Heterocyclic Allenes From a Well‐Defined Titanium Vinylidene Complex
Angewandte Chemie, Volume 138, Issue 20, 11 May 2026.The syntheses and the structures of N‐heterocyclic allenes are reported. Allenes bearing fluorenylidene capping groups show markedly bent C═C═C units, a carbene‐like reactivity, and they can act as potent C‐donor ligands for metal complexes. ABSTRACT Allenes typically display a linear geometry. A notable exception occurs in allenes bearing two electron‐
Bastiaan Kooij +4 more
wiley +2 more sources
Absence of PRRSV antibodies and antigen in sera and oral fluids samples from Brazilian swine herds. [PDF]
, 2013 Projeto/Plano de Ação: 02.11.01 ...
ARAÚJO JÚNIOR, J. P. +8 more
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Facile Synthesis of H‐L‐Photo‐Lysine and Its Genetic Incorporation Into Proteins
ChemBioChem, Volume 27, Issue 10, 27 May 2026.An efficient synthesis of a diazirine‐based noncanonical amino acid (ncAA), photo‐lysine (photoK), is reported, and its genetic incorporation into green fluorescent protein (GFP) is demonstrated. PhotoK‐enabled crosslinking is used to capture substrates and interaction partners of SIRT6 in vitro, in Escherichia coli, and in HEK293 cell lysates ...
Abu Hamza, Chiranjeev Sharma, Yana Cen
wiley +1 more source
Chemical constituents and antioxidant activity of garcinia parvifolia Miq. stem bark [PDF]
, 2015 The chemical constituents of GarciniaparvifoliaMiq.stem bark have been studied. The dried samples have been extracted using Soxhlet apparatus to give the crude products.
Ahmad, Farediah +2 more
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Bifunctional Photocatalysts: Exploiting Proximity for Enhanced Reaction Performance
Chemistry – A European Journal, Volume 32, Issue 19, 22 May 2026.This review covers the application of the bifunctional approach to photocatalysis as a means to attain (enhanced) enantioselectivity, and, more in general, as a strategy to enhance the catalytic performance through an effective use of short‐lived reaction intermediates.
Luigi Dolcini +3 more
wiley +1 more source
Recent Approaches for the Synthesis of Pyridine and Quinoline Cores Present in Natural Products
Advanced Synthesis &Catalysis, Volume 368, Issue 10, 19 May 2026.An anthology of the most recent methods used to synthesize pyridines and quinolines found in natural products over the last decade. Pyridines, quinolines, and their derivatives represent a class of significant heterocyclic compounds that are prevalent in a multitude of natural products, including alkaloids found in plants, fungi, insects, marine ...
Carl Bowman +2 more
wiley +1 more source
Hydrogen Atom Transfer Induces Photodegradation in Carbonyl‐Based Multi‐Resonance TADF Emitters
Angewandte Chemie, Volume 138, Issue 19, 4 May 2026.Boosting triplet harvesting in N/C═O MR‐TADF emitters unexpectedly induces rapid photodegradation under oxygen‐free conditions. Spectroscopic studies reveal that triplet excited states trigger hydrogen‐atom transfer from solvent to the carbonyl unit, driven by triplet energetics and hydrogen electrophilicity.
Changfeng Si +4 more
wiley +2 more sources
Quantifying Dual‐Color Photopolymerization in Xolography via Raman Spectroscopy
Journal of Polymer Science, Volume 64, Issue 10, Page 1998-2008, 15 May 2026.A dual‐wavelength Raman spectroscopy workflow is presented for the quantitative assessment of dual‐color photoinitiators. Contrast and efficiency parameters are extracted from in situ curing curves and spatial Raman mapping is used to find inhomogeneities in printed objects.
Nele Lange +10 more
wiley +1 more source