Cysteine-coated Magnetite Nanoparticles for the Removal of Carmoisine Edible Dye from Aqueous Medium.

Background: In this study, cysteine-coated magnetite nanoparticles (FeO@Cys MNPs) were synthesized by chemical method and applied as a recoverable and efficient adsorbent for the removal of carmoisine dye from aqueous solutions. The synthesized MNPs were characterized by FT-IR, XRD, SEM, and TEM studies.

Methods: The effect of various experimental parameters on the dye removal efficiency was studied using Taguchi orthogonal array design (L array).

Synthesis and evaluation of new magneto-fluorescent carbon dot based on manganese citrate for MRI imaging.

Objective: Medical imaging techniques have widely revolutionized the diagnosis and treatment of various health conditions. Among these techniques, magnetic resonance imaging (MRI) has stood out as a noninvasive and versatile tool. Now, a breakthrough innovation called "manganese-carbon dots" is poised to enhance MRI imaging and provide physicians with even greater insight into the human body.

One-pot Synthesis of a New Category of 2-aryl-quinazolinones Using OImDSA as an Efficient Heterocyclic Medium.

Background: Dihydroquinazolinone derivatives are an important family of fused heterocyclic compounds which possess a wide range of biological, medicinal and pharmacological properties such as anti-tumor, anti-biotic, diuretic, analgesic, anti-hypertonic, anti-pyretic, antidepressant, anti-histamine and vasodilation activities.

Introduction: So far, some acid catalysts, e.g.

Expedient synthesis of novel antibacterial hydrazono-4-thiazolidinones under catalysis of a natural-based binary ionic liquid.

A library of pyran-2H-one-3-ylmethylidene and chromene-2H-one-3-ylmethylidene derivatives of the titled heterocyclic framework was synthesized from 3-acyl-4-hydroxypyran/chromene-2H-one via sequential reaction with thiosemicarbazide and dialkyl acetylenedicarboxylates. The syntheses were carried out under efficient catalysis of a new binary ionic liquid mixture [L-prolinium chloride][1-methylimidazolium-3-sulfonate] in one pot and solvent-free conditions. Calculations based on density functional theory displayed that the barrier energy for interconversion of the two possible diastereomeric isomers of each product is less than the thermal energy of molecules at room temperature, as only one product can be resolved from a given reaction mixture.