Results 131 to 140 of about 21,256,998 (238)

Effect of Osteoblast‐Extracellular Matrix‐Functionalized Nanostructured Titanium Surface on Osteoblastic Cell Behavior

Journal of Biomedical Materials Research Part A, Volume 114, Issue 8, August 2026.
ABSTRACT Nanostructured titanium (Ti) facilitates osteoblast differentiation by modulating various signaling pathways and may enhance osseointegration, potentially through its influence on the formation and remodeling of the extracellular matrix (ECM). This study aimed to investigate the impact of osteoblast‐ECM‐functionalized nanostructured Ti surface
Georgia Kors Quiles, Paola Gomes Souza, Maria Paula Oliveira Gomes, Rayana Longo Bighetti‐Trevisan, Leticia Faustino Adolpho, Helena Bacha Lopes, Adalberto Luiz Rosa, Marcio Mateus Beloti   +7 more
wiley   +1 more source

Photochromic carbazole photoinitiators for precision visible‐light photopolymerization

Polymer International, Volume 75, Issue 8, Page 722-728, August 2026.
New carbazole–naphthopyran derivatives were employed as visible‐light‐activated photoinitiators, enabling rapid and localized radical photopolymerization to produce well‐defined thin solid objects within minutes. Abstract Two carbazole derivatives, each incorporating a naphthopyran unit and an aromatic ketone, were synthesized and evaluated as ...
Mauro Magalhães, Céu M Sousa, José R Fernandes, Paulo J Coelho   +3 more
wiley   +1 more source

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

Chemistry – A European Journal, Volume 32, Issue 28, 25 July 2026.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

Synthesis of Benzopyran Atropisomers via Electrophilic Halogenation

European Journal of Organic Chemistry, Volume 29, Issue 27, 17 July 2026.
We report a halogenation‐based method for the synthesis of axially chiral benzopyrans, tolerating diverse substituents and halogens (Br, Cl, and I). A double bromination gives bisbenzopyrans with two stereogenic axes. Preliminary enantioselective conditions yield benzopyran atropisomer with up to 56% ee.
Alix Bourhis, Expédite Yen‐Pon, Jean Rodriguez, Damien Bonne   +3 more
wiley   +1 more source

Polysilane‐Supported Nickel as an Efficient Catalyst for the Hydrogenation of Aromatic Compounds†

Chinese Journal of Chemistry, Volume 44, Issue 14, Page 2277-2282, 15 July 2026.
A Ni/Si catalyst obtained from the reaction of poly(monohydro)silane with Ni(cod)2 serves as an effective heterogeneous catalyst for the hydrogenation of arenes under reaction conditions that are significantly milder than those required for conventional nickel‐based catalysts such as Raney nickel.
Hiromu Baba, Yusuke Sunada
wiley   +1 more source

Hybrid Aminoferrocenes With Nitrate Esters for In Situ Peroxynitrite Generation: Complex Interplay Between Redox Chemistry, NO‐Donor Reactivity, and Aminoferrocene Activation Influences In Vitro Anticancer Activity

ChemBioChem, Volume 27, Issue 13, 14 July 2026.
Aminoferrocene‐based prodrugs represent a promising class of redox‐active anticancer agents that can be selectively activated in oxidative cellular environments. However, activation of these systems typically relies on reactive oxygen species (ROS) and is therefore inefficient in intracellular compartments with low ROS levels, such as the cytoplasm. In
Hülya Gizem Özkan, Roman Selin, Paula Holst, Rainer Tietze, Christoph Alexiou, Andriy Mokhir   +5 more
wiley   +1 more source

Experimental and Computational Elucidation of Protic Redox Reaction Mechanisms

ChemElectroChem, Volume 13, Issue 13, 2 July 2026.
Comparing quantum chemical calculations of redox potentials against experimental data provides a powerful and cost‐effective method for validating proposed protic redox reaction mechanisms, provided that computational and experimental uncertainties are robustly quantified. Molecular design of redox‐active species for applications such as redox sensing,
Lachlan O. Smith, Deborah L. Crittenden
wiley   +1 more source

Intermolecular Asymmetric Arylative Dearomatization of 1-Naphthols

Journal of the American Chemical Society
Arylative dearomatization forms quaternary stereocenters in cyclic systems with the concomitant introduction of an aromatic ring. Pd-catalyzed arylative dearomatization, which uses conditions analogous to cross-coupling, has emerged as a powerful method in an intramolecular context.
Kadarauch, Max, Moss, Thomas A, Phipps, Robert J   +2 more
openaire   +3 more sources

Bridging Stability and Reactivity: Novel Dinucleating Ligand With Rigid Backbone Stabilizes a Cu2O2 Side‐On Peroxido Structure

European Journal of Inorganic Chemistry, Volume 29, Issue 19, 2 July 2026.
The herein‐developed tyrosinase model complex enables the transfer of tyrosinase‐like catalytic oxygenation activity into artificial systems. Therefore, it enables the use of molecular oxygen for oxygenation and oxidation of phenolic substrates at room temperature.
Rosalie Dalhoff, Christine Charlotte Müller, Alexander Hoffmann, Sonja Herres‐Pawlis   +3 more
wiley   +1 more source

Carga superficial de agregados nanoestruturados [PDF]

, 2011
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Química.A adição de sais em soluções de surfactantes dipolares iônicos promove incorporação específica de ânions nas ...
Silva, Marcelo
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