The synthesized pyrazole-based compounds were evaluated for their pharmacokinetic properties and antifungal activity. The pharmacokinetic results, obtained through the pKCSM server, showed favorable solubility, human intestinal absorption (HIA) greater than 70%, and good permeability to the central nervous system (CNS) for certain compounds, with low inhibition of CYP450 enzymes and predicted toxicity within safe limits. Regarding antifungal activity, the compounds demonstrated effective inhibition of the growth of two pathogenic fungi, with minimum inhibitory concentrations (MIC) ranging from 2 to 16 µg/mL. These results suggest that these compounds possess an optimal pharmacokinetic profile and promising antifungal activity, making them attractive candidates for clinical development. Thus, this study identifies compounds with high therapeutic potential for the treatment of fungal infections while ensuring a good safety profile for future development.

Biomimetic catalysis is a paradigmatic approach to overcoming the gulf between nature’s enzymic efficiency and synthetically obtained diversity. Synthetic catalysts now achieve high selectivity in significant chemical transformations from organic synthesis to medicinal chemistry by exactly imitating enzyme active site structure and mechanism-dependent properties. Remarkably, catecholase and tyrosinase analogs have enabled green oxidation routes that are more efficient than conventional high-energy-sucking processes. Advances in porous materials—particularly metal-organic frameworks (MOFs) and covalent organic frameworks (COFs)—extend catalytic recyclability and mild-condition reactivity further, typically employing ambient oxygen and water solvents to minimize the environmental impact. Beyond chemical synthesis, biomimetic nanozymes are revolutionizing biomedicine. These systems offer stable, tunable alternatives to natural enzymes in diagnostic analysis, oxidative stress relief, and targeted drug delivery, which address age-old therapeutics specificity challenges. However, critical issues remain, including deactivation of catalysts under working conditions and scalability issues. Recent advances combine computational modeling, ligand engineering, and hybrid bio-inorganic architectures to optimize stability and activity. This review synthesizes state-of-the-art developments in homogeneous and enzyme-mimetic catalysts, emphasizing their mechanistic diversity and applications. We critically evaluate outstanding limitations—reaction selectivity and industrial compatibility—while outlining future directions. The integration of biomimetic principles can redefine sustainable chemistry, from industrial processes to future medicines, and emphasize its pivotal position in addressing global scientific and environmental issues.

Mullite (Al₆Si₂O₁₃), an aluminosilicate with remarkable thermal and dielectric properties, is a promising material for advanced electronic applications. This study focuses on a sintered mullite composite and examines its structural, morphological, dielectric, and electrical properties. X-ray diffraction and scanning electron microscopy analyses confirm a well-defined crystalline structure and a homogeneous microstructure. Impedance spectroscopy measurements reveal a high relative permittivity at low frequencies, dominated by interfacial and jump polarization mechanisms. Electrical conductivity follows Jonscher’s double-power law, reflecting mixed ionic and electronic conduction due to contributions from grains and grain boundaries. Analysis of the Nyquist diagrams shows a marked decrease in resistances with increasing temperature: The grain resistance decreases from 21.87 MΩ to 4.85 MΩ, while that of the grain boundaries decreases from 89.44 MΩ to 5.94 MΩ between 450 °C and 900 °C. In addition, the relative permittivity increases sharply with temperature, from 25 × 10³ to 350 × 10³ at 1 kHz and from 200 to 1 × 10³ at 1 MHz over the same temperature range, highlighting the dominant influence of temperature and low frequencies on polarization mechanisms. These results confirm the strong potential of sintered mullite for electronic applications. The activation energy of the grain and grain boundary were determined to be E_a,g = 0.18 eV and E_a,bg = 0.22 eV, respectively.