Results 101 to 110 of about 12,568 (228)

Development of chalcones structure‐related to avobenzone: Photoprotection, photostability, and safety evaluation

Photochemistry and Photobiology, EarlyView.
Scaffold hopping strategy used to develop chalcones structure‐related to the avobenzone tautomer. Positive aspects of 2‐hydroxychalcones are highlighted. Abstract Chalcones are α,β‐unsaturated ketones with extended π‐conjugation, making them promising scaffolds for the development of organic UV filters.
Gabriela Zanella Marcon, Taíne de Bastos Brum, Nayara Fernanda Tokashike de Araujo, Gabriela Lascala Ramos, Bruna Cogo Borin, Ruth Barin, Aline Ferreira Ourique, André Passaglia Schuch, Andréa Inês Horn Adams, Lorena Rigo Gaspar Cordeiro, Letícia Cruz, Fernando Fumagalli   +11 more
wiley   +1 more source

Optical Durability of Contemporary PV Encapsulants Through Artificial UV Weathering

Progress in Photovoltaics: Research and Applications, Volume 34, Issue 9, Page 1189-1199, September 2026.
Encapsulant choice can be used to mitigate UV‐induced degradation in modern silicon photovoltaic modules, but this strategy is only effective if encapsulants are durable under UV weathering. This study identifies optical changes to 14 commercial encapsulants as a function of UV weathering and identifies that, while changes to material transmittance ...
Dennice M. Roberts, Xavier Hanna, David C. Miller, Rachael L. Arnold, Jimmy M. Newkirk, Kent Terwilliger, Steve Johnston, Rebecca B. Wai, Peter Hacke, Dana B. Kern   +9 more
wiley   +1 more source

Tuning Membrane Binding and Lipid Phase Preference of DNA Nanostructures via Synergistic Multi‐Lipidation

ChemSystemsChem, Volume 8, Issue 5, September 2026.
DNA origami nanostructures functionalized with lipophilic anchors of distinct hydrophobicity reveal synergistic effects on membrane binding and phase‐specific localization. Weak anchors, although insufficient for binding alone, enhance membrane association and govern selective phase partitioning when combined with strong anchors, establishing multi ...
Subhasini Singh, Henri G. Franquelim
wiley   +1 more source

Evaluating the Efficacy of Sunscreen Formulas in Reducing UV Filter Permeation Into the Stratum Corneum via In Vivo Confocal Raman Spectroscopy: Insights and Applications for Practical Suncare Product Design

Photodermatology, Photoimmunology &Photomedicine, Volume 42, Issue 5, September 2026.
ABSTRACT Aims The transdermal permeation of UV filters has long been a concern among consumers and researchers. Among them, the permeation of small‐molecule UV filters such as homosalate (HMS) (molecular weight < 500 Da) and the regulatory effects of formulation components on its permeation have not been fully investigated.
Tao Zhang, Hangwei Lu, Shangqian Ning, Yue Liu, Tianyang Li, Xueting Zhao, Hao Liu, Yuankun Liu, Jiayue Chen   +8 more
wiley   +1 more source

From o‐Phenylenediamine to Flavin Derivatives: A Potential Prebiotic Carbon Skeleton Expansion With Formaldehyde, Cyanide, and CO2

Advanced Synthesis &Catalysis, Volume 368, Issue 16, 18 August 2026.
A Strecker‐type reaction of aromatic ortho‐diamines with various aldehydes and cyanide assembles the bicyclic amidine core of flavin‐derived heterocycles under mild conditions. Subsequent oxidation, radical or photochemical cyanation, carboxylation with CO2, and CO2‐mediated cyclization build the three‐ring alloxazine scaffold. This sequence provides a
Christian Held, Rodrigo José da Silva Lima, Ji‐Woong Lee   +2 more
wiley   +1 more source

Contribution of One‐Electron Oxidation of Purine and Pyrimidine Bases to the Photo‐ and Radiation‐Induced Damage to Cellular DNA

ChemPhysChem, Volume 27, Issue 15, 14 August 2026.
One‐electron oxidation of purine and pyrimidine bases of isolated and cellular DNA generates related reactive base radical cations that are converted into final decomposition products through deprotonation and hydration. In the case of guanine, the most susceptible nucleobase to one‐electron oxidants, 8‐hydroxy‐7,8‐dihydroguanyl radical, thus formed by
Jean Cadet, Dimitar Angelov, Paolo DI Mascio, J. Richard Wagner   +3 more
wiley   +1 more source

A Hands‐On Guide to Open‐Shell Calculations in Organic Chemistry: Radical Chemistry, Single Electron Transfer, and Energy Transfer

European Journal of Organic Chemistry, Volume 29, Issue 29, 7 August 2026.
Molecules with unpaired electrons, also known as open‐shell systems, are key intermediates in several light‐mediated or metal‐catalyzed transformations in organic chemistry. However, modeling this chemistry by density functional theory calculations is challenging.
Nil Sanosa, Diego Sampedro, Ignacio Funes‐Ardoiz   +2 more
wiley   +1 more source

Chiral cyclopropenimine-catalyzed enantioselective Michael reactions of phenol and benzofuran-derived α,β-unsaturated pyrazolamides with benzophenone-imine of glycine esters. [PDF]

Beilstein J Org Chem
Bai Y, Wang XY, Zhu SK, Shen YT, Zhang SY, Wang PA.   +5 more
europepmc   +1 more source

Mechanochemistry as an Emerging Tool for Organofluorine Chemistry

Chemistry–Methods, Volume 6, Issue 8, August 2026.
Fluorinated scaffolds are central across many areas of chemistry, driving the demand for efficient and sustainable synthetic methods. Mechanochemistry has emerged as a powerful alternative to conventional approaches, offering reduced environmental impact, shorter reaction times, and unique reactivity and selectivity.
Marie Caldiero, Nicolas Delcroix, Vitalii Solomin, Thomas Castanheiro   +3 more
wiley   +1 more source

Antiviral activity of the aqueous extract of twelve monthly-collections of propolis from Barra do Corda. [PDF]

Sci Rep
Mendonça RZ, Braida YV, Fernandes AC, Nascimento RM, Salatino A, Salatino MLF, Negri G.   +6 more
europepmc   +1 more source