Publications by authors named "Mokhtar Boutahala"
Article Synopsis
- The study focused on creating microspheres containing Mesalazine (5-ASA) for targeted drug delivery to the colon, using an emulsion solvent evaporation method.
- The formulation included sodium alginate and ethylcellulose as encapsulating agents and polyvinyl alcohol as an emulsifier while examining the impact of various processing parameters on the microspheres' properties.
- Characterization methods included optical microscopy and spectroscopy, and drug release was tested in simulated gastric and intestinal fluids, with kinetic results analyzed under specific mathematical models to evaluate drug liberation.
Chitosan/bentonite beads (CsB) composites were prepared from chitosan (Cs) and bentonite (B) and cross-linked with epichlorohydrin for removal of reactive orange 16 (RO16) and methylene blue (MB). The adsorption results have shown that the (Cs20B80), 20 % wt of (Cs) and 80 % (B), was selected as the best adsorbent for (MB) and (RO16) dyes. SEM, EDX, FTIR, BET, and pHpzc were implemented to investigate the features of Cs, B, and Cs20B80 samples.
View Article and Find Full Text PDFThe aim of this study was to prepare and characterise inclusion complexes of a low water-soluble drug, mefenamic acid (MA), with β-cyclodextrin (β-CD). First, the phase solubility diagram of MA in β-CD was drawn from 0 to 21 × 10 M of β-CD concentration. A job's plot experiment was used to determine the stoichiometry of the MA:β-CD complex (2:1).
View Article and Find Full Text PDFMagnetic beads (AO-γ-FeO) of alginate (A) impregnated with citrate coated maghemite nanoparticles (γ-FeO) and oxidized multiwalled carbon nanotubes (OMWCNTs) were synthesized and used as adsorbent for the removal of methylene blue from water. The XRD analysis revealed that the diameter of γ-FeO is 10.24 nm.
View Article and Find Full Text PDFThe present work focused on the performance of chitosan/polyaniline (Cht-PANI) composite for removing tartrazine dye from aqueous solutions. The adsorbent was characterized using SEM, XRD, FTIR, and TGA/DTA techniques. The effects of pH, initial dye concentration, contact time, and temperature on azo dye removal were studied.
View Article and Find Full Text PDFArticle Synopsis
- The study investigated the effectiveness of three materials—acid-activated organobentonite (OAB), calcium alginate (A), and a composite bead (A-OAB)—in removing methylene blue dye from water.
- The researchers evaluated various factors like pH, temperature, and initial dye concentration, finding that the maximum adsorption capacities at 25°C were 263.80 mg/g for OAB, 483.6 mg/g for A, and 799.43 mg/g for A-OAB.
- Results showed that the adsorption could be described by the pseudo-second-order kinetic model and suggested that A-OAB is a cost-effective option for removing dyes from wastewater, with a slight decrease in efficiency after multiple uses.