Results 101 to 110 of about 7,454 (221)

2-[(E)-2-(Benzylideneamino)ethyl]-3′,6′-bis(diethylamino)spiro[isoindoline-1,9′-xanthen]-3-one

Acta Crystallographica Section E, 2011
In the title compound, C37H40N4O2, the xanthene and spirolactam rings are almost planar, with r.m.s. deviations from the mean planes of 0.223 (2) and 0.057 (2) Å, respectively, and form a dihedral angle of 85.76&
Zhen Wei, Xujun Zheng, Junjun Bai, Xiaohong Zhai, Lili Song   +4 more
doaj   +1 more source

Novel and emerging antimicrobial strategies in the management of oral infections

Periodontology 2000, EarlyView.
Abstract Background Antibiotics marked a pivotal turning point in human civilization, enhancing social interactions and extending human life expectancy. In addition to their success in treating systemic infectious diseases, they have significantly improved periodontal treatment outcomes as an adjunct therapy.
Ozge Unlu, Nil Yakar, Alpdogan Kantarci
wiley   +1 more source

Photodegradation of Azo and Hydrazone Colourants on Cellulose‐Based Materials: A Mass Spectrometric Screening

ChemistrySelect, Volume 11, Issue 37, 6 October 2026.
Natural‐light ageing of early azo dyes and hydrazone pigments (AY36, AO7, and AR1) on cellulose‐based supports produces marked chromatic changes and distinct molecular transformations. LC–HRMS analysis of aged AY36 reveals degradation products associated with N‐oxidation, N‐dearylation, azo‐bond oxidation, and formaldehyde addition, providing a first ...
Adele Ferretti, Tommaso Nacci, Ilaria Degano   +2 more
wiley   +1 more source

Near‐White Circularly Polarized Luminescence by Color Mixing Utilizing Surface‐Fluorophore‐Modified Cellulose Nanocrystals in Composite Films

Chemistry – A European Journal, Volume 32, Issue 36, 24 September 2026.
Robust, bio‐derived, and freestanding films based on cellulose nanocrystals (CNCs), covalently decorated with achiral fluorophores, transduce shape chirality and supramolecular helicity into near‐white circularly polarized luminescence (CPL). With composites covering the visible spectrum, near‐white, right‐handed CPL with high luminescence dissymmetry (
Asmita Shah, Timothy G. Lerch, Gourab Acharjee, Grace A. R. Rohaley, Shamima Akhter, Nicholas M. Kamuti, Ashwathanarayana Gowda, Ryan A. Williams, Elda Hegmann, Marianne E. Prévôt, Torsten Hegmann   +10 more
wiley   +1 more source

Synthesis of new xanthene derivatives

, 2012
Xanthene dyes, including fluorescein, are a well-known class of fluorescent dyes, which have widespread applications in natural sciences. The synthesis of xanthene derivatives via acid catalyzed condensation of substituted phenols with phthalic ...
Kotaskova, Michaela
core  

Separation of Polyamide 66 From Blends With Wool Through Selective Dissolution: Implications of the Presence of Dyes

Journal of Applied Polymer Science, Volume 143, Issue 33, September 5, 2026.
The study assesses dye impacts on PA66/wool recycling via selective PA66 dissolution in calcium chloride–ethanol–water and water reprecipitation. Acid dyes migrate into solvent, yielding color‐free, melt‐spinnable PA66 and reusable wool. Metal‐complex dyes remain, altering PA66 melt viscosity and requiring extraction or repurposing.
Lukas Vonbrül, Doris E. Braun, Barbara M. Paul, Amalid Mahmud‐Ali, Sandra Eberle, Michael Cordin, Thomas Bechtold, Tung Pham, Avinash P. Manian   +8 more
wiley   +1 more source

Molecular Rotors: From Newtonian Fluids to Functional Materials as Viscosity and Temperature Sensing Tools

Advanced Functional Materials, Volume 36, Issue 72, 7 September 2026.
Molecular rotors are fluorescent molecules that are sensitive to viscosity and temperature variations in the environment. They exhibit a direct correlation between fluorescence and viscosity within Newtonian fluids. However, this correlation becomes less straightforward in complex systems.
Flavia Di Scala, Alice Briole, Valerii Myndrul, Thomas J. Cleij, Hanne Diliën, Bérengère Abou, Bart van Grinsven   +6 more
wiley   +1 more source

Field Effects Induce Bathochromic Shifts in Xanthene Dyes

, 2016
There is ongoing interest in near-infrared (NIR) absorbing and emitting dyes for a variety of biomedical and materials applications. Simple and efficient synthetic procedures enable the judicious tuning of through-space polar (field) effects as well as ...
Robert M. Strongin (285461), Jorge O. Escobedo (2070244), Mark Lowry (2070241), Martha Sibrian-Vazquez (285460), Frank R. Fronczek (568703)   +4 more
core   +1 more source

Synthetic Food Colorants and Gut Microbiota: A Systematic Review of Preclinical Studies

Food Frontiers, Volume 7, Issue 5, September 2026.
ABSTRACT Growing evidence suggests that industrial food processing, including the excess consumption of food additives, might have a negative impact on human health. Despite regulatory safety evaluations, their impact on gut microbiota remains poorly characterized.
Sebastiano Alfio Torrisi, Federica Martina Di Domenico, Gian Marco Leggio, Giuseppe Caruso, Evelyn Frias‐Toral, Nohora Milena Martínez López, Agnieszka Micek, Marialaura Bonaccio, Justyna Godos, Giuseppe Grosso   +9 more
wiley   +1 more source

A TREK‐1/AQP4/TRPA1/BDNF Signaling Axis Is Associated With Astrocytic Volume Transients, Synaptic Plasticity, and Spatial Memory

Glia, Volume 74, Issue 9, September 2026.
Astrocytic TREK‐1‐dependent volume transients contribute to hippocampal synaptic plasticity and memory formation. TRPA1‐mediated astrocytic calcium signaling is required for long‐term potentiation, while astrocytic BDNF is necessary and sufficient to support sustained synaptic plasticity.
Victor James Drew, Junsung Woo, Jung Moo Lee, Wuhyun Koh, Joungha Won, Jae‐Hun Lee, C. Justin Lee   +6 more
wiley   +1 more source