Results 111 to 120 of about 263,137 (300)

Application of a novel schema for describing fossil fern foliage and investigating taxonomic and morphological change across the Cretaceous–Paleogene boundary in western North America

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the well‐documented “fern spore spike.” However, fern macrofossil records across the K–Pg boundary are less understood.
Fern B. Holian   +9 more
wiley   +1 more source

Anti-Inflammatory Effects of Flavonoids in Otitis Media: A Systematic Review of Pre-Clinical Evidence [PDF]

open access: yes
Otitis media (OM), a common infection of the middle ear, remains a leading cause of preventable hearing loss globally. Chronic inflammation underpins its pathophysiology, driving persistent mucosal damage and complications such as cholesteatoma.
Ismail, Hazrat   +3 more
core   +1 more source

Hepatoprotective and antioxidant effect of Actinodaphne hookeri Meissn. leaf extracts against CCl4-induced liver injury in rats [PDF]

open access: yes, 2016
The petroleum ether, chloroform and alcoholic extracts of A. hookeri Meissn. leaves were studied to evaluate the hepatoprotective and antioxidant activities in CCl4-induced hepatotoxicity in rats.
Akki, Kusum S   +2 more
core   +2 more sources

Characterization in silico of flavonoids biosynthesis in Theobroma cacao L. [PDF]

open access: yes, 2011
A detailed and curated map of molecular interactions taking place in the polyphenols (flavonoids) biosynthesis in Theobroma cacao L. is presented. The map was created using the software Cytoscape v.2.7 and the KEGG (Kyoto Encyclopedia of Genes and ...
Arsenio Rodriguez, Diogenes Infante
core  

Green Fuel Combustion Synthesis of CeO2 and Ag/CeO2 Nanoparticles for Photocatalytic and Antibacterial Applications

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Silver‐doped cerium oxide nanoparticles (Ag/CeO2 NPs) were synthesized using Ricinus communis seed extract as a bio‐derived fuel in a solution combustion method. The combustion reaction, carried out at 450°C with AgNO3 and (NH4)2[Ce (NO3)6] as metal precursors, produced CeO2 and Ag/CeO2 NPs.
T. N. Ravishankar   +5 more
wiley   +1 more source

Plant‐Derived Silver Nanoparticles From Senegalia catechu: Antimicrobial Activity and Sunlight‐Driven Photocatalysis

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Silver nanoparticles (Ag NPs) have garnered attention for their environmental and medicinal potential, emphasizing the need for eco‐friendly synthesis. This study produces Ag NPs by reacting silver nitrate with aqueous Senegalia catechu leaf extract, a reductant and stabilizer.
Devendra Khadka   +6 more
wiley   +1 more source

Flavonoids from Twigs of

open access: yesNatural Product Communications, 2014
A new flavone, 3-methoxy-5-hydroxy-[2”,3”:7,8] furanoflavone, pubinerone ( 1 ), was isolated from the twigs of Millettia pubinervis Kurz, together with ten known flavonoids, karanjin ( 2 ), kanjone ( 3 ), 3,6-dimethoxy-[2”,3”:7,8] furanoflavone ( 4 ...
Zhi Na, Qi-Shi Song, Hua-Bin Hu
doaj   +1 more source

An Intelligent Wound Dressing Platform Based on Natural pH‐Sensors From Syzygium cumini

open access: yesJournal of Applied Polymer Science, EarlyView.
This study presents a dual‐functionality wound dressing platform based on an alginate–hyaluronate matrix integrated with Syzygium cumini extract. The smart film acts as a sensitive, reversible pH‐sensor for real‐time infection monitoring and a structural plasticizer that enhances mechanical conformability.
Rachel Faverzani Magnago   +8 more
wiley   +1 more source

Citrus Flavonoids as Antimicrobials

open access: yesChemistry & Biodiversity
ABSTRACT Citrus flavonoids are highly bioactive compounds exerting numerous health benefits including anticancer, antioxidant, antimicrobial, anti‐inflammatory, mitoprotective, and neuroprotective activity.
Rosaria Ciriminna   +6 more
openaire   +3 more sources

Development and Characterization of Ribes nigrum Extract‐Loaded PLGA/Chitosan Nanoparticles as a Vaginal Drug Delivery System for Vulvovaginal Candidiasis

open access: yesJournal of Applied Polymer Science, EarlyView.
Ribes nigrum extract‐loaded PLGA/chitosan nanoparticles is developed as a vaginal drug delivery system for vulvovaginal candidiasis. The chitosan‐coated nanoparticles exhibit favorable physicochemical properties, strong mucoadhesion, sustained release for up to 2 weeks, excellent biocompatibility, and potent antifungal activity against Candida albicans,
Ayca Aslan Aras   +6 more
wiley   +1 more source

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