Results 61 to 70 of about 2,769 (197)

Through‐space interaction enables simultaneous enhancements of kr and kRISC in highly efficient spiro‐acridine based thermally activated delayed fluorescence emitter with acridone acceptor

open access: yesSmart Molecules, Volume 3, Issue 4, December 2025.
Intramolecular through‐space interaction is designed for the first time in a thermally activated delayed fluorescence emitter to pull the appropriate rotation of the acridine donor to deviate from the perpendicular orientation, which solves the common problem of insufficient FMO overlap to simultaneously enhance the radiation transition and reverse ...
Yongqiang Mei   +7 more
wiley   +1 more source

Improving the fluorescent probe acridonylalanine through a combination of theory and experiment [PDF]

open access: yes, 2018
Acridonylalanine (Acd) is a useful fluorophore for studying proteins by fluorescence spectroscopy, but it can potentially be improved by being made longer wavelength or brighter.
Barrett, Taylor M.   +12 more
core  

Verapamil-Sensitive Transport of Quinacrine and Methylene Blue via the Plasmodium falciparum Chloroquine Resistance Transporter Reduces the Parasite's Susceptibility to these Tricyclic Drugs. [PDF]

open access: yes, 2015
BACKGROUND: It is becoming increasingly apparent that certain mutations in the Plasmodium falciparum chloroquine resistance transporter (PfCRT) alter the parasite's susceptibility to diverse compounds. Here we investigated the interaction of PfCRT with 3
Lehane, Adele M   +6 more
core   +1 more source

Visible Light‐Promoted Aerobic Oxidation of Boronic Acids and Esters Utilizing a Benzothioxanthene Imide as the Photocatalyst

open access: yesEuropean Journal of Organic Chemistry, Volume 28, Issue 44, November 28, 2025.
A photochemical aerobic oxidation protocol using a benzothioxanthene imide as the photocatalyst at a low catalyst loading (0.01 mol%) is developed for the oxidation of boronic acids and esters. Herein, a sustainable and eco‐friendly protocol is reported for the aerobic photochemical oxidation of boronic acids or esters, utilizing a dibenzothioxanthene ...
Stamatis K. Serviou   +6 more
wiley   +1 more source

Prenylation of Aromatic Secondary Metabolites: A New Frontier for Development of Novel Drugs [PDF]

open access: yes, 2014
Prenylation of aromatic secondary metabolites is an important process involved in the biosynthesis of many biologically active compounds in plants and animals.
Abdullahi, MI   +3 more
core   +2 more sources

Light‐Harvesting Nanomaterials Based on Dyes for Energy Transfer and Amplified Biosensing

open access: yesAdvanced Materials, Volume 37, Issue 45, November 13, 2025.
Light harvesting (LH) in plants inspires researchers to develop artificial LH nanomaterials. Here, LH nanomaterials based on organic dyes are reviewed, considering fundamental challenges on aggregation‐caused quenching, excitation energy transfer, and exciton migration length.
Andrey S. Klymchenko   +2 more
wiley   +1 more source

Inhibition of RNA helicases of ssRNA+ virus belonging to Flaviviridae, Coronaviridae and Picornaviridae families [PDF]

open access: yes, 2011
Many viral pathogens encode the motor proteins named RNA helicases which display various functions in genome replication. General strategies to design specific and selective drugs targeting helicase for the treatment of viral infections could act via one
Briguglio, Irene   +3 more
core  

Synthesis of Fluorinated Benzophenones, Xanthones, Acridones, and Thioxanthones by Iterative Nucleophilic Aromatic Substitution [PDF]

open access: yes, 2012
Fluorination of fluorophores can substantially enhance their photostability and improve spectroscopic properties. To facilitate access to fluorinated fluorophores, bis(2,4,5-trifluorophenyl)methanone was synthesized by treatment of 2,4,5 ...
Fu, Liqiang   +2 more
core   +1 more source

Ribosomal Incorporation of Thioxanthone as a Noncanonical Amino Acid Facilitates the Engineering of Photoenzymes

open access: yesChemCatChem, Volume 17, Issue 20, October 20, 2025.
Thioxanthone is an efficient visible‐light photosensitizer and facilitates reactions that are not known from natural enzymes. It is now possible to incorporate thioxanthone as a noncanonical amino acid (thioX) into proteins by an engineered amino acyl tRNA synthetase.
Marco Seifert   +3 more
wiley   +1 more source

Crop Protection and Treatment: Studying Fungal Membrane Damage by Tetrahydroacridine Derivatives

open access: yesBiomedical and Biotechnology Research Journal
Background: The widespread use of antibiotics has led to the emergence of drug-resistant strains, posing a significant challenge to global public health. Inspired by natural products, this study synthesized three series of tetrahydroacridine derivatives.
Yanhui Zhao   +5 more
doaj   +1 more source

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