主题词：Nanoparticles: synthesis and applications; Gas Sensing Nanomaterials and Sensors; TiO2 Photocatalysis and Solar Cells; ZnO doping and properties; Copper-based nanomaterials and applications; Advanced Photocatalysis Techniques; Graphene and Nanomaterials Applications; Laser-Ablation Synthesis of Nanoparticles; Quantum Dots Synthesis And Properties; Chalcogenide Semiconductor Thin Films; Polymer Nanocomposite Synthesis and Irradiation; Conducting polymers and applications; Transition Metal Oxide Nanomaterials; Advanced Nanomaterials in Catalysis; Nanoparticle-Based Drug Delivery; Graphene research and applications; Luminescence Properties of Advanced Materials; Photonic and Optical Devices; Corrosion Behavior and Inhibition; Advanced Drug Delivery Systems; Semiconductor materials and interfaces; Electronic and Structural Properties of Oxides; Moringa oleifera research and applications; Electrohydrodynamics and Fluid Dynamics; Pigment Synthesis and Properties