Results 31 to 40 of about 6,872 (221)

4-Azafluorenone and α-Carboline Fluorophores with Green and Violet/Blue Emission

Molecules, 2019
The emission properties of three 4-azafluorenone and five new α-carboline fluorophores in both solution and thin solid films were investigated. Fluorescence of the azafluorenone is clearly enhanced in thin solid films due to the presence of phenyl ...
Marek Cigáň, Peter Danko, Henrich Brath, Matúš Čakurda, Roman Fišera, Jana Donovalová, Juraj Filo, Martin Weis, Ján Jakabovič, Miroslav Novota, Anton Gáplovský   +10 more
doaj   +1 more source

Rumors of Psychedelics, Psychotropics and Related Derivatives in Vachellia and Senegalia in Contrast with Verified Records in Australian Acacia

Plants, 2022
There are almost 1000 species of Acacia sensu stricto in Australia, while the 44 species and 4 subspecies in southern Africa were taxonomically revised in the year 2011 to Senegalia and Vachellia.
Nicholas J. Sadgrove
doaj   +1 more source

Chemical and photochemical properties of chloroharmine derivatives in aqueous solutions [PDF]

, 2016
Thermal and photochemical stability (ΦR), room temperature UV-vis absorption and fluorescence spectra, fluorescence quantum yields (ΦF) and lifetimes (τF), quantum yields of hydrogen peroxide (ΦH2O2) and singlet oxygen (ΦΔ) production, and triplet ...
Cabrerizo, Franco Martín, Denofrio, Maria Paula, Erra Balsells, Rosa, Gonzalez, Maria Micaela, Rasse Suriani, Federico Ariel Osvaldo, Seifermann, Marco, Wolcan, Ezequiel, Yañuk, Juan Gabriel   +7 more
core   +1 more source

Comprehensive review of β-carbolines from microbes and their biosynthesis

European Journal of Medicinal Chemistry Reports
β-carbolines were historically known as plant-derived metabolites. They are known to exhibit a broad spectrum of biological activities with clinical and economic significance.
Mary Ayeko Twumasi, Matthew Peter Kusche, Amna Farzeen Baig, S. Eric Nybo, Madan Kumar Kharel   +4 more
doaj   +1 more source

LC/MS/MS analysis of the endogenous dimethyltryptamine hallucinogens, their precursors, and major metabolites in rat pineal gland microdialysate [PDF]

, 2013
We report a qualitative liquid chromatography–tandem mass spectrometry (LC/MS/MS) method for the simultaneous analysis of the three known N , N ‐dimethyltryptamine endogenous hallucinogens, their precursors and metabolites, as well as melatonin and its ...
Barker, Steven A., Borjigin, Jimo, Lomnicka, Izabela, Strassman, Rick   +3 more
core   +1 more source

Comparative Effects of α-, β-, and γ-Carbolines on Platelet Aggregation and Lipid Membranes

Journal of Toxicology, 2011
Cigarette smoking and alcohol consumption possibly affect platelet functions. To verify the hypothesis that some α-, β-, and γ-carboline components in cigarette smoke and alcoholic beverages may change platelet aggregability, their effects on human ...
Hironori Tsuchiya
doaj   +1 more source

Bioassay-Guided Interpretation of Antimicrobial Compounds in Kumu, a TCM Preparation From Picrasma quassioides’ Stem via UHPLC-Orbitrap-Ion Trap Mass Spectrometry Combined With Fragmentation and Retention Time Calculation

Frontiers in Pharmacology, 2021
The stem of Picrasma quassioides (PQ) was recorded as a prominent traditional Chinese medicine, Kumu, which was effective for microbial infection, inflammation, fever, and dysentery, etc.
Haibo Hu, Haibo Hu, Changling Hu, Jinnian Peng, Alokesh Kumar Ghosh, Ajmal Khan, Dan Sun, Dan Sun, Walter Luyten   +8 more
doaj   +1 more source

Effect of scopolamine-based amnesia on the number of astrocytes in the rat's hippocampus [PDF]

, 2012
As neuron-astrocyte interactions play a crucial role in the adult brain, it is thought that astrocytes support learning and memory through specific mechanisms.
Azami, N.S., Jahanshahi, M., Nickmahzar, E.   +2 more
core   +1 more source

Covalent Protein Inhibitors via Tyrosine and Tryptophan Conjugation with Cyclic Imine Mannich Electrophiles

Angewandte Chemie, Volume 138, Issue 15, 6 April 2026.
Targeted covalent inhibitors (TCI) containing cyclic imine warheads react with tyrosine and tryptophan residues via the Mannich reaction. These cyclic imine warheads show comparable reaction kinetics to cysteine‐reactive electrophiles commonly used in TCIs.
Sijie Wang, Lei Wang, Marco Hadisurya, Siavash Shahbazi Nia, W. Andy Tao, Emily C. Dykhuizen, Casey J. Krusemark   +6 more
wiley   +2 more sources

Diversity-oriented synthesis derived indole based spiro and fused small molecules kills artemisinin-resistant Plasmodium falciparum

Malaria Journal, 2021
Background Despite numerous efforts to eradicate the disease, malaria continues to remain one of the most dangerous infectious diseases plaguing the world. In the absence of any effective vaccines and with emerging drug resistance in the parasite against
Akshaykumar Nayak, Himani Saxena, Chandramohan Bathula, Tarkeshwar Kumar, Souvik Bhattacharjee, Subhabrata Sen, Ashish Gupta   +6 more
doaj   +1 more source