1. Human traditions have developed the knowledge and use of medicinal plants to improve human health [1]. The medicinal properties of plants are due to products synthesized by the plants themselves...

In this work, the adsorption of basic fuchsine largely used in industries was studied by Zn/Al-HDL intercalated with diamino-dodecylphosphonic acid (DDPA). The physicochemical characteristics of Zn/Al-DDPA were evaluated by Brunauer–Emmett–Teller method, Fourier transform infrared spectroscopy, X-ray diffraction, and the elementary analysis to determine the rate of grafting. The effect of concentration of fuchsine, reaction times, ionic strength effect and the effect of the temperature were studied. The thermodynamic and kinetic studies were carried out and the results confirmed that all adsorption processes were spontaneous and thermodynamically favorable and that the adsorbent is reusable after three steps of desorption. The best uptake in this study was 90%.

A novel hybrid material Zn/Al-diaminododecylphosphonic acid (DADPHA) layered double hydroxide (LDH) was synthesized and characterized for its structural, electronic, and antibacterial properties. X-ray diffraction confirmed DADPHA intercalation, increasing basal spacing from 7.55 to 7.95 angstrom. The crystallite size of Zn/Al-DADPHA (11.10 nm) was smaller than that of Zn/Al-SO₄ LDH (16.70 nm), indicating modification. FTIR confirmed phosphonic acid functional groups, while SEM revealed a morphological shift from hexagonal platelets to aggregated structures. Zn/Al-DADPHA exhibited significant antibacterial activity, with inhibition zones of 25.6 mm (Escherichia coli), 10.9 mm (Pseudomonas aeruginosa), 30.2 mm (Staphylococcus aureus), and 25.5 mm (Bacillus cereus). Molecular docking revealed strong ligand-protein interactions (-7.1 to -9.4 kcal/mol). DFT calculations showed a HOMO-LUMO gap of 4.82 eV, confirming electronic stability. MD simulations over 100 ns indicated complex stability with RMSD below 2.5 angstrom. These findings highlight the potential of Zn/Al-DADPHA LDH for biomedical and antimicrobial applications.

This study has investigated the solvent extraction of cadmium and lead ions from an aqueous solution in nitrate medium using aminooctyldiphosphonic acid (AODPA) as extractant in chloroform. In order to establish spectrophotometrically the concentration of metal ion in the aqueous phase before and after extraction, the Arsenazo III method was used. The effects of several extraction parameters on the extraction of these metals ions including volume ratio between the aqueous and organic phases (1–5), extraction kinetic time (0–30 min), molar ratio Q (1–5), addition of HNO3 (pH =2–6), addition of KNO3 (0.01 – 1M), temperature (10–40°C) and the synergetic effect by adding TOPO (solvating agent) were evaluated. Thermodynamic parameters including the Gibbs free energy (ΔG0),enthalpy (ΔH0), and entropy (ΔS0) were calculated. Performed experiments showed that Pb (II) can be extracted till 73% when Cd (II) can be recovered completely after two cycles. The extraction of both metallic ions was spontaneous, endothermic and with a slight randomness. Positive synergetic effect was observed at a chelating agent/TOPO ratio of 3. It is a very encouraging result which can lead us to recover cadmium and lower the concentration of lead from wastewater.

Infertility poses a significant challenge within the sheep population, hindering herd regeneration. Both rams and ewes are susceptible to infertility, prompting our objective of enhancing reproductive performance through the utilization of essential oils as a means to mitigate this issue. Essential oils have long been acknowledged for their medicinal properties and have been extensively employed in traditional medicine. Some essential oils have been reported to exert effects on male reproductive functions in both animals and humans.Pimpinella anisum, scientifically known as green anise, is a medicinal and aromatic annual plant renowned as one of the oldest medicinal herbs and widely used as a spice. In Algeria, essential oils extracted from Pimpinella anisum are consumed on a wide scale; however, their potential in enhancing ram fertility has remained unexplored.To improve the fertility of the Rembi breed sheep population, rams were randomly selected for this study. These rams underwent various experiments to evaluate their response to different concentrations (0, 0.5, and 1 mm/ram) of essential oil obtained from anise seeds using the hydro-distillation extraction method. Furthermore, the study encompassed an assessment of their key zootechnical characteristics over a one-year period.

(2-(Pyridin-2-yl)ethyl)phosphonic acid and (2-(pyridin-4-yl)ethyl)phosphonic acid were synthesized from 2-vinylpyridine and 4-vinylpyridine, respectively, and characterized by spectroscopic methods. Because phosphonic acids readily graft onto metal oxides, these two bifunctional ligands were immobilized on alumina under microwave irradiation to afford Al2-pyrPA and Al4-pyrPA. The resulting materials were characterized by elemental microanalysis, Fourier-transform infrared (FTIR) spectroscopy, Brunauer–Emmett–Teller (BET) surface-area analysis, thermogravimetric analysis (TGA), and differential thermal analysis (DTA). The materials were evaluated as heterogeneous acid–base catalysts for Knoevenagel condensations. Three representative reactions catalyzed by Al4-pyrPA gave isolated yields of 84–92% under microwave irradiation.