Results 31 to 40 of about 18,274 (245)

Antiulcer Activity of Anthraquinone–Flavonoid Complex of Rumex tianschanicus Losinsk

Molecules, 2023
The composition of an ethanol extract from the roots of Rumex tianschanicus Losinsk of the Trans-Ili Alatau wild flora was studied in order to determine its antiulcer activity.
Gulnaz A. Seitimova, Aksholpan K. Shokan, Tatyana G. Tolstikova, Nataliya A. Zhukova, Dmitriy Yu. Korulkin, Nataliya O. Kudrina, Yuliya A. Litvinenko, Nataliya D. Meduntseva, Nina V. Terletskaya, Timur E. Kulmanov   +9 more
doaj   +1 more source

Determination of Anthraquinone-Tagged Amines Using High-Performance Liquid Chromatography with Online UV Irradiation and Luminol Chemiluminescence Detection

Molecules, 2023
Quinones are frequently used as derivatization reagents in HPLC analysis to improve detection sensitivity. In the present study, a simple, sensitive, and selective chemiluminescence (CL) derivatization strategy for biogenic amines, prior to their HPLC-CL
Naoya Kishikawa, Mahmoud El-Maghrabey, Ayaka Kawamoto, Kaname Ohyama, Naotaka Kuroda   +4 more
doaj   +1 more source

Invisible Polymer Walls Enhance Reorientational Optical Nonlinearity in Oligothiophene‐Doped Liquid Crystals

Advanced Functional Materials, EarlyView.
The polymer wall stabilized dye‐doped liquid crystals (PWLCs) enhance the sensitivity of photoinduced molecular reorientation in dye‐doped LC systems. The PWLC with an invisible polymer wall successfully reduces the threshold intensity and functions as an optical limiter under the incidence of low intensity light laser source.
Junki Yokota, Yuya Nakata, Erika Katayama, Miho Aizawa, Kyohei Hisano, Shoichi Kubo, Atsushi Shishido   +6 more
wiley   +1 more source

Dye‐Initiated Chirped Cholesteric Polymer Networks Exhibiting Broadband Dissipative Chiral Photonic Bands

Advanced Functional Materials, EarlyView.
A dye‐based photoinitiator acting as a structure‐directing element, guides the formation of a cholesteric polymer network that behaves as a chirped photonic structure with dissipative chiral coupling. Photopolymerization freezes a depth‐dependent helical pitch, broadening the Bragg resonance spectrum.
Alfredo Mazzulla, Pasquale Pagliusi, Gabriella Cipparrone   +2 more
wiley   +1 more source

Supramolecular Modulation of Photoinduced Charge Transfer: Tuning Between Tunneling and Incoherent Hopping

Angewandte Chemie, EarlyView.
Molecular recognition guest binding can comprehensively modulate photoinduced charge‐transfer dynamics in the cyclophane host, including charge separation and recombination, via coherent superexchange and incoherent hopping. Unlike covalent donor–bridge–acceptor systems, this supramolecular approach avoids tedious syntheses and offers precise tuning of
Xueze Zhao, Guangcheng Wu, Chun Tang, Georgia C. Mantel, Bai‐Tong Liu, Yi‐Kang Xing, Han Han, Shuai Fang, Charlotte L. Stern, J. Fraser Stoddart, Michael R. Wasielewski, Ryan M. Young   +11 more
wiley   +2 more sources

Novel Tricarbonylrhenium-Anthrapyrazole Complexes with DNA-Binding and Antitumor Properties: In Vitro and In Vivo Pharmacokinetic Studies with ^99mTc-Analogue

Inorganics
Organometallic complexes of fac-tricarbonylrhenium have been shown to exhibit anticancer properties. Anthrapyrazole anticancer agents act as DNA intercalators and topoisomerase IIα inhibitors, leading to double-strand breaks (DBS) and cell cycle arrest ...
Georgios Paparidis, Melpomeni Akrivou, George Psomas, Ioannis S. Vizirianakis, Antonios Hatzidimitriou, Catherine Gabriel, Dimosthenis Sarigiannis, Dionysia Papagiannopoulou   +7 more
doaj   +1 more source

Safety of cassia gum as a feed additive for cats and dogs based on a dossier submitted by Glycomer GmbH

EFSA Journal, 2019
The additive cassia gum consists mainly of high‐molecular weight polysaccharides composed primarily of a linear chain of 1,4‐β‐d‐mannopyranose units with 1,6‐linked α‐d‐galactopyranose units.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Vasileios Bampidis, Giovanna Azimonti, Maria de Lourdes Bastos, Henrik Christensen, Birgit Dusemund, Maryline Kouba, Mojca Kos Durjava, Marta López‐Alonso, Secundino López Puente, Francesca Marcon, Baltasar Mayo, Alena Pechová, Mariana Petkova, Fernando Ramos, Yolanda Sanz, Roberto Edoardo Villa, Ruud Woutersen, Gabriele Aquilina, Georges Bories, Andrew Chesson, Carlo Nebbia, Derek Renshaw, Matteo Lorenzo Innocenti, Jürgen Gropp   +24 more
doaj   +1 more source

Anthraquinone Emodin Inhibits Tumor Necrosis Factor Alpha-Induced Calcification of Human Aortic Valve Interstitial Cells via the NF-κB Pathway

Frontiers in Pharmacology, 2018
Exploring effective therapies for delaying calcific heart valve disease (CHVD) is the focus of current cardiovascular clinical and scientific research.
Kang Xu, Tingwen Zhou, Yuming Huang, Qingjia Chi, Jiawei Shi, Peng Zhu, Nianguo Dong   +6 more
doaj   +1 more source

Vacillantins A and B, New Anthrone C-glycosides, and a New Dihydroisocoumarin Glucoside from Aloe vacillans and Its Antioxidant Activities

Plants, 2020
A new dihydroisocoumarin glucoside, vacillanoside (3), and two new anthrone C-glycosides microdantin derivatives; vacillantin A (10) and B (11), together with nine known compounds belonging to the anthraquinone, anthrone and isocoumarin groups were ...
Maram Al-Tamimi, Shaza M. Al-Massarani, Ali A. El-Gamal, Omer A. Basudan, Maged S. Abdel-Kader, Wael M. Abdel-Mageed   +5 more
doaj   +1 more source

New Anthraquinones and Anthraquinone Glycosides from Morinda lucida

Zeitschrift für Naturforschung B, 1981
Abstract From the trank heartwood of Morinda lucida four new anthraquinones, 3-hydroxy-anthraquinone-2-carbaldehyde, morindone-5-methyl ether, munjistin methyl ester, damna-canthol-ѡ-methyl ether and two glycosides, soranjidiol 6-0-β-primveroside and lucidin 3-0-β-primveroside were isolated and identified by spectroscopic and chemical ...
George P. Demagos, Wolfgang Baltus, Gerhard Höfle   +2 more
openaire   +1 more source