Results 41 to 50 of about 73,676 (250)

Therapeutic Applications of Stimuli‐Based Release and Engineering of Extracellular Vesicles

open access: yesAdvanced NanoBiomed Research, EarlyView.
This review summarizes the effects of endogenous and exogenous stimuli, their effects on the natural release of extracellular vesicles, as well as their uptake and release. It also gives an overview of stimuli‐responsive EVs and their therapeutic applications. Extracellular vesicles (EVs), nano‐ to microsized lipid bilayer membrane‐bound particles, are
Gloria Kemunto, Kristen Dellinger
wiley   +1 more source

The Molecular Weight Characterisation of Pinus radiata Bark Condensed Tannins

open access: yes, 2007
Crude condensed tannins extracted from Pinus radiata bark (sourced from Tokoroa) with various solvents (Hot water (HW), methanol/water/acetic acid (MWA), acetone/water (AW) and hot aqueous 2% sulphite/urea solution (SFU)) were subjected to Sephadex LH-20
Bogun, Ben Rowan
core  

Does Propolis Contain Tannins? [PDF]

open access: yes, 2014
Although polyphenols have been reported as common constituents of propolis, tannins have \ud rarely been mentioned as its constituents. Propolis samples from seven localities in Brazil \ud were analyzed for detection of proanthocyanidins (condensed ...
Mayworm, Marco Aurélio Sivero   +5 more
core  

Desenvolvimento de métodos analíticos em GC-FID, CE-UV e LC-MS/MS no estudo fitoquímico de triterpenos, flavonóis e taninos voltado para a obtenção de uma nova cultivar de Maytenus ilicifolia (espinheira-santa) [PDF]

open access: yes, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2014.Esta tese tem como proposta principal o desenvolvimento de novos métodos analíticos para a ...
Vistuba, Jacqueline Pereira
core  

Evaluation of the cytotoxic and genotoxic potential of Khat (Catha edulis Forsk) extracts on human T lymphoblastoid cell line

open access: yes, 2004
This paper reports on an investigation of the cytotoxic and genotoxic potential of khat extract using a human T lymphoblastoid cell line (CEM). Exponentially growing CEM cells were cultured for 12 h in the presence of khat extract (0-2000 μg ml-1 ...
Barnett, YA   +4 more
core   +1 more source

Wine tannins: Where are they coming from? A method to access the importance of berry part on wine tannins content

open access: yes, 2020
Phenolic compounds are important constituents of red wine involved in its sensory properties. Although wine tannins can come from microbial and oak sources, the main sources of polyphenol remains grape skins and seeds.
GENY-DENIS, Laurence   +4 more
core   +1 more source

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

Wine tannins [PDF]

open access: yes, 2014
Tanini su prirodni organski spojevi, esteri hiroksikarboksilnih kiselina s viševalntnim alkoholima ili šećerima. Nalaze se u šišarkma, stablima i listovima biljka, a sadrže ih i zeleni plodovi koji zbog toga imaju gorak okus.
Jelenić, Dragana
core  

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

Biobased Polyurethane Films Based on Andiroba (Carapa guianensis) and Buriti (Mauritia flexuosa) Oil Polyols

open access: yesJournal of Applied Polymer Science, EarlyView.
Polyurethane films were prepared from andiroba (Carapa guianensis) and buriti (Mauritia flexuosa) oil‐derived polyols, emphasizing their potential as bio‐based materials. UV–Vis analysis indicates the retention of carotenoid‐related chromophoric features within the polymer matrix.
João A. P. da Silva   +5 more
wiley   +1 more source

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