391 publication(s) trouvée(s)
Article scientifique
Bio-sorption for effective removal of chromium(VI) from wastewater using Moringa stenopetala seed powder (MSSP) and banana peel powder (BPP)
Chromium is an extremely toxic metal in the form of Cr(VI) that causes severe environmental and health problems. Therefore, the …
Article scientifique
Synthesis of cyclic carbonates from epoxides and carbon dioxide catalyzed by talc and other phyllosilicates
Abstract Naturally occurring phyllosilicate minerals such as talc and vermiculite in conjunction with n-tetra butyl ammonium bromide (TBAB) co-catalyst were …
Article scientifique
Pharmaceuticals and personal care products in water and wastewater: a review of treatment processes and use of photocatalyst immobilized on functionalized carbon in AOP degradation
Abstract The presence of emerging contaminants such as pharmaceutical and personal care products in many aqueous matrices have been reported. …
Article scientifique
Antibacterial activity of Cu(II) and Co(II) porphyrins: role of ligand modification
Abstract In this study, we report antibacterial activity of metalloporphyrins; 5, 10, 15, 20-tetrakis ( para -X phenyl)porphyrinato M (II) …
Article scientifique
Effect of altitude of coffee plants on the composition of fatty acids of green coffee beans
BACKGROUND: The fatty acids of green coffee beans are one of the major components that determine the quality of coffee. …
Article scientifique
Primary validation of Charm II tests for the detection of antimicrobial residues in a range of aquaculture fish
and the parameters determined included: detection capability, repeatability, reproducibility, specificity and robustness for the detection of antimicrobial residues in fish. …
Article scientifique
Synthesis of new 2-amino-1,3,4-oxadiazole derivatives with anti-salmonella typhi activity evaluation
Abstract Reaction of phenyl acetic acid derivatives with thiosemicarbazide in the presence of POCl3 afforded 5-(4-bromobenzyl)-1,3,4-oxadiazole-2-amine 1 and 5-(3-nitrophenyl)-1,3,4-oxadiazole -2-amine …
Article scientifique
Synthesis and biological evaluation of 2-(4-methylsulfonyl phenyl) indole derivatives: multi-target compounds with dual antimicrobial and anti-inflammatory activities
Abstract Three series of 2-(4-methylsulfonylphenyl) indole derivatives have been designed and synthesized. The synthesized compounds were assessed for their antimicrobial, …
Article scientifique
Eco-friendly approach to access of quinoxaline derivatives using nanostructured pyrophosphate Na2PdP2O7 as a new, efficient and reusable heterogeneous catalyst
Abstract In the present study, we report the synthesis of various quinoxaline derivatives from direct condensation of substituted aromatic 1,2-diamine …
Article scientifique
Facile synthesis and antiproliferative activity of new 3-cyanopyridines
Abstract Background Pyridines have been reported to possess various pharmacological activities. Results Sodium 3-oxo-3-(2-oxo-2H-chromen-3-yl)prop-1-en-1-olate (2) and sodium 3-oxo-3-(3-oxo-3H-benzo[f]chromen-2-yl)prop-1-en-1-olate (7) were …
Article scientifique
Mechanistic formation of hazardous molecular heterocyclic amines from high temperature pyrolysis of model biomass materials: cellulose and tyrosine
BACKGROUND: Research inventories on the co-pyrolysis of major biomass components such as cellulose with amino acid materials is scarce in …
Article scientifique
A facile and one-pot synthesis of new tetrahydrobenzo[b]pyrans in water under microwave irradiation
Abstract Eleven new tetrahydrobenzo[b]pyran derivatives were synthesized via a three component reaction of different aromatic aldehydes, methyl cyanoacetate and 1,3-cyclohexadione, …
Article scientifique
Benzimidazole Schiff base derivatives: synthesis, characterization and antimicrobial activity
Abstract A series of Schiff bases (3.a–f) bearing benzimidazole moiety was successfully synthesized in ethanol by refluxing Oct-2-ynoic acid (1,3-dihydrobenzimidazole-2-ylidene)amide …
Article scientifique
New potentiometric sensors for methylphenidate detection based on host–guest interaction
Abstract The study aims to develop simple, sensitive, and selective methods for detecting methylphenidate in its bulk, dosage form and …
Article scientifique
Two novel UPLC methods utilizing two different analytical columns and different detection approaches for the simultaneous analysis of velpatasvir and sofosbuvir: application to their co-formulated tablet
Abstract In the present study two different RSLC columns, Acclaim RSLC 120 C18, 5.0 µm, 4.6 × 150 mm (column …
Article scientifique
Three smart spectrophotometric methods for resolution of severely overlapped binary mixture of Ibuprofen and Paracetamol in pharmaceutical dosage form
Paracetamol is an analgesic-antipyretic drug and Ibuprofen is a non-steroidal anti-inflammatory drug. They are co-formulated as tablets to improve analgesia, …
Article scientifique
Identification of novel antifungal agents: antimicrobial evaluation, SAR, ADME–Tox and molecular docking studies of a series of imidazole derivatives
Thirty-four imidazole-based compounds synthesized by one-pot catalytic method were evaluated for their antifungal and antibacterial activities against several fungal and …
Article scientifique
Assessment of lipophilicity of newly synthesized celecoxib analogues using reversed-phase HPLC
Lipophilicity is a physicochemical property of an essential importance in medicinal chemistry; therefore, fast and reliable measurement of lipophilicity will …
Article scientifique
Thermodynamic pathway of lignocellulosic acetylation process
The use of natural cellulosic fibers as materials in the reinforcements of polymer composites and sorption of oil from water, …
Article scientifique
A UPLC/DAD method for simultaneous determination of empagliflozin and three related substances in spiked human plasma
A simple, rapid and sensitive ultrahigh performance liquid chromatographic method was developed for the determination of the anti-diabetic drug: empagliflozin …