Results 21 to 30 of about 94,849 (289)

Recent advances in the synthesis and application of fluorescent α-amino acids [PDF]

open access: yes, 2016
Fluorescence spectroscopy has become a powerful technique for probing a range of complex biological processes including enzyme mechanisms and protein-protein interactions. While the application of this technique uses a number of strategies, many of these
Harkiss, Alexander, Sutherland, Andrew
core   +1 more source

Anti-biofilm activities of coumarin as quorum sensing inhibitor for Porphyromonas gingivalis

open access: yesJournal of Oral Microbiology, 2022
Porphyromonas gingivalis is a keystone pathogen in periodontitis, a biofilm-mediated infection disease. This research aimed to investigate the effect of coumarin on P. gingivalis biofilm formation. We detected the antimicrobial effect on P.
Zhiyan He   +6 more
doaj   +1 more source

The antitumor effects of mitochondria-targeted 6-(nicotinamide) methyl coumarin

open access: yesOpen Life Sciences, 2016
Cancer is the second leading cause of death worldwide. Traditional antitumor drugs exhibit severe cytotoxic and side effects. Lung cancer needs new and more effective treatment approaches. Coumarin derivatives can act on various tumor cells and show anti-
Wang Huanan, Yao Ming, Xu Wenqing
doaj   +1 more source

Anabolic metabolism of autotoxic substance coumarins in plants [PDF]

open access: yesPeerJ, 2023
Background Autotoxicity is an intraspecific manifestation of allelopathy in plant species. The specialized metabolites and their derivatives that cause intraspecific allelopathic inhibition in the plant are known as autotoxic substances.
Bei Wu   +5 more
doaj   +2 more sources

Molecular modification of coumarin dyes for more efficient dye sensitized solar cells [PDF]

open access: yes, 2012
solo para uso personalIn this work, new coumarin based dyes for dye sensitized solar cells (DSSC) have been designed by introducing several substituent groups in different positions of the NKX-2311 structure.
Fernández Sanz, Javier   +4 more
core   +1 more source

Interaction of anticancer reduced Schiff base coumarin derivatives with human serum albumin investigated by fluorescence quenching and molecular modeling [PDF]

open access: yes, 2014
The specific binding of five reduced Schiff base derived 7-amino-coumarin compounds with antitumor activity to human serum albumin, the principal binding protein of blood, was studied by fluorescence spectroscopy.
Belatika   +48 more
core   +2 more sources

COSY catalyses trans-cis isomerization and lactonization in the biosynthesis of coumarins [PDF]

open access: yes, 2019
Coumarins, also known as 1,2-benzopyrones, comprise a large class of secondary metabolites that are ubiquitously found throughout the plant kingdom.
Boerjan, Wout   +15 more
core   +1 more source

Molecular Modelling Based on TD-DFT Applied to UV Spectra of Coumarin Derivatives

open access: yesWalisongo Journal of Chemistry, 2023
The optimization of geometry and electronic transition of seven coumarin derivatives for sunscreen activity have been conducted using Orca. DFT methods is applied to find optimum geometry and parameter data is measured like bond length and bond angle. TD-
Mokhamat Ariefin, Rokiy Alfanaar
doaj   +1 more source

Range separated hybrid density functional study of organic dye sensitizers on anatase TiO$_2$ nanowires [PDF]

open access: yes, 2014
The adsorption of organic molecules coumarin and the donor-$\pi$-acceptor type tetrahydroquinoline (C2-1) on anatase (101) and (001) nanowires have been investigated using screened Coulomb hybrid density functional theory calculations.
Ellialtioglu, Sinasi   +4 more
core   +2 more sources

Coumarin sulfonamide derivatives: An emerging class of therapeutic agents

open access: yesHeterocyclic Communications, 2020
Coumarin sulfonamide is a heterocyclic pharmacophore and an important structural motif which is a core and integral part of different therapeutic scaffolds and analogues.
Irfan Ali   +7 more
doaj   +1 more source

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