Results 61 to 70 of about 4,473 (184)

Covalently Immobilized Lignin–Xanthene Conjugates for Persistent Surface Photochemistry and Self‐Sterilizing Interfaces Under Ambient Visible Light

Macromolecular Rapid Communications, Volume 47, Issue 15, 4 August 2026.
Bio‐derived lignin–Eosin Y macromolecular networks are developed as visible‐light‐responsive self‐sterilizing coatings that generate reactive oxygen species without leaching. The spray‐coated photopolymerized surfaces exhibit durable antibacterial and antiviral activity under ambient light for extended periods, demonstrating a scalable and sustainable ...
Euna Oh, Surjith Kumaran, Sumin Han, Kiseok Lee, Hyerin Shin, Seokmin Oh, Dae‐Hong Ko, Hyo‐Jick Choi   +7 more
wiley   +1 more source

Impact of Electronic Substitution and Planarization on the Photophysical Properties of 2‐(2′‐Hydroxyphenyl)benzoxazole or 2‐(2′‐Hydroxyphenyl)‐Dimethylindole

European Journal of Organic Chemistry, Volume 29, Issue 28, 25 July 2026.
We report the synthesis, structural characterization, and photophysical investigation of a series of Excited‐State Intramolecular Proton Transfer‐active HBO and HDMI derivatives. By varying heterocyclic cores, substituents, and ethynyl planarization, we establish structure–property relationships governing fluorescence behavior.
Mathieu Gervais, Timothée Stoerkler, Gilles Ulrich, Pascal Retailleau, Tristan Asset, Adèle D. Laurent, Denis Jacquemin, Julien Massue   +7 more
wiley   +1 more source

Design strategies and progress on xanthene-based fluorescent probe for metal ions

Reviews in Analytical Chemistry, 2017
Metal ions play critical roles in numerous fundamental life processes. Hence, there is a great need to effectively monitor and image metal ions. Fluorescent probes are one of the most effective methods for measuring metal ions.
Ma Siyue, Wang Yaqi, She Mengyao, Wang Shen, Yang Zheng, Liu Ping, Zhang Shengyong, Li Jianli   +7 more
doaj   +1 more source

Novel β-cyclodextrin–eosin conjugates

Beilstein Journal of Organic Chemistry, 2017
Eosin B (EoB) and eosin Y (EoY), two xanthene dye derivatives with photosensitizing ability were prepared in high purity through an improved synthetic route.
Gábor Benkovics, Damien Afonso, András Darcsi, Szabolcs Béni, Sabrina Conoci, Éva Fenyvesi, Lajos Szente, Milo Malanga, Salvatore Sortino   +8 more
doaj   +1 more source

Photosensitization of Colloidal SnO2 Semiconductor Nanoparticles with Xanthene Dyes

Journal of Chemistry, 2013
The photochemical behavior of xanthene dyes (fluorescein, erythrosine, and eosin) with colloidal SnO2 nanoparticles was probed by UV-visible, steady state, and time resolved fluorescence measurements. The prepared SnO2 nanoparticles were characterized by
N. Nagarajan, G. Paramaguru, G. Vanitha, R. Renganathan   +3 more
doaj   +1 more source

PMF@SO3H nanosheet: an efficient novel bifunctional acid–base catalyst for the one-pot synthesis of 14-Aryl-14H-Dibenzo[a,j]xanthenes and evaluation of their antimicrobial activities supported by DFT and molecular docking studies

Journal of Saudi Chemical Society
This study presents the design and synthesis of a highly efficient solid acid catalyst based on mesoporous poly(melamine–formaldehyde) (MPMF) functionalized with 1,4-butanesultone.
Zahra Karimi, Leila Amiri-Zirtol, Zahra Nazemoroaya, Najmedin Azizi, Reza Ranjbar-Karimi, Seyedeh Narjes Abootalebi, Ahmad Gholami   +6 more
doaj   +1 more source

New synthetic strategies for xanthene-dye-appended cyclodextrins

Beilstein Journal of Organic Chemistry, 2016
Xanthene dyes can be appended to cyclodextrins via an ester or amide bridge in order to switch the fluorescence on or off. This is made possible through the formation of nonfluorescent lactones or lactams as the fluorophore can reversibly cyclize.
Milo Malanga, Andras Darcsi, Mihaly Balint, Gabor Benkovics, Tamas Sohajda, Szabolcs Beni   +5 more
doaj   +1 more source

3,11-Dibromo-14-(4-chlorophenyl)-14H-dibenzo[a,j]xanthene dimethylformamide monosolvate

Acta Crystallographica Section E, 2012
In the title compound, C27H15Br2ClO·C3H7NO, the xanthene moiety has a flattened boat conformation with a folding angle between the naphthalene units of 9.46 (3)°.
Yong Bin Song, Bo Liu
doaj   +1 more source

Nano-Fe3O4 encapsulated-silica particles bearing sulfonic acid groups as an efficient, eco-friendly and magnetically recoverable catalyst for synthesis of various xanthene derivatives under solvent-free conditions

Journal of Saudi Chemical Society, 2017
This report describes an efficient method for the synthesis of 1,8-dioxo-octahydroxanthene, 14H-dibenzo[a,j]xanthene, 12-aryl-tetrahydrobenzo[a]xanthenes-11-one and 13-aryl-5H-dibenzo[b,i]xanthene-5,7,12,14(13H)-tetraone derivatives in the presence of a ...
Firouzeh Nemati, Samane Sabaqian
doaj   +1 more source

Eccoptura xanthenes

Published as part of Myers, Luke William, Kondratieff, Boris C, Grubbs, Scott A, Pett, Lindsey A, DeWalt, R. Edward, Mihuc, Timothy B & Hart, Lily Veronica, 2025, Distributional and species richness patterns of the stoneflies (Insecta, Plecoptera) in New York State, pp.
Myers, Luke William, Kondratieff, Boris C, Grubbs, Scott A, Pett, Lindsey A, DeWalt, R. Edward, Mihuc, Timothy B, Hart, Lily Veronica   +6 more
openaire   +2 more sources