主题词：Synthesis and biological activity; Adsorption and biosorption for pollutant removal; Advanced Photocatalysis Techniques; Nanoparticles: synthesis and applications; Nanomaterials for catalytic reactions; Electrochemical Analysis and Applications; Multicomponent Synthesis of Heterocycles; Essential Oils and Antimicrobial Activity; Phytochemicals and Antioxidant Activities; Metal complexes synthesis and properties; Synthesis and Characterization of Heterocyclic Compounds; Corrosion Behavior and Inhibition; Synthesis and Biological Evaluation; Electrochemical sensors and biosensors; Phytochemistry and Biological Activities; Analytical chemistry methods development; Computational Drug Discovery Methods; Analytical Chemistry and Chromatography; Natural product bioactivities and synthesis; Advanced Nanomaterials in Catalysis; Conducting polymers and applications; Analytical Chemistry and Sensors; TiO2 Photocatalysis and Solar Cells; Analytical Methods in Pharmaceuticals; Catalytic Processes in Materials Science