Call for papers/Topics All Abstracts, Reviews, short articles, Full articles, Posters are welcomed related with any of the following research fields: The fields of nanostructures, nanomaterials, and nanoengineering span fundamental physics, chemistry, biology, and applied engineering. Dimensional Classification of Nanostructures Zero-Dimensional (0D) Nanostructures: Confined in all three spatial dimensions under 100 nm. Examples include quantum dots, fullerenes, nanodots, and core-shell metallic nanoparticles. One-Dimensional (1D) Nanostructures: Unconfined along a single axis. Examples include carbon nanotubes (CNTs), semiconductor nanowires, nanorods, and nanobelts. Two-Dimensional (2D) Nanostructures: Sheet-like structures with macro-scale length and width but nanoscale thickness. Examples include graphene, transition metal dichalcogenides (TMDs), MXenes, and hexagonal boron nitride (h-BN). Three-Dimensional (3D) Nanostructures: Bulk assemblies built from lower-dimensional nanoscale components. Examples include nanoporous networks, nanocomposites, aerogels, and nanostructured superlattices. Chemical and Structural Composition Carbon-Based Nanomaterials: Structural forms built from sp2/sp3 carbon configurations, including graphene oxide, single-walled and multi-walled carbon nanotubes, fullerenes, nanodiamonds, and carbon dots. Inorganic Nanomaterials: Metallic nanoparticles (gold, silver, platinum), metal oxide nanostructures (TiO_2, ZnO, Fe_3O_4), quantum dots (CdSe, InP), and layered double hydroxides. Organic and Polymeric Nanomaterials: Soft-matter systems such as polymeric micelles, dendrimers, liposomes, solid lipid nanoparticles, and nano-hydrogels. Hybrid and Nanocomposite Materials: Systems combining two or more nanoscale constituents, including organic-inorganic hybrids, metal-organic frameworks (MOFs), and polymer-nanoparticle composites. Nanomaterial Synthesis and Fabrication Methods Top-Down Fabrication Techniques: Mechanical ball milling, photolithography, electron beam lithography, focused ion beam milling, reactive ion etching, and laser ablation. Bottom-Up Chemical Synthesis: Sol-gel processing, hydrothermal/solvothermal synthesis, chemical vapor deposition (CVD), atomic layer deposition (ALD), self-assembly mechanisms, and microemulsion techniques. Biological and Green Synthesis: Plant-extract-mediated synthesis, microbial production, enzyme-assisted crystallization, and bio-template directed growth. Nanoscale Physical and Chemical Phenomena Quantum Confinement Effects: Discrete energy levels, blue shifts in optical absorption, size-tunable bandgaps, and exciton behavior. Surface Effects: High surface-area-to-volume ratios, surface energy minimization, altered catalytic activity, and surface plasmon resonance (SPR). Nanoscale Mechanics and Transport: Ballistic electron transport, quantum tunneling, thermal transport across nano-interfaces, superplasticity, and size-dependent mechanical strength. Characterization and Metrology Techniques Electron Microscopy: Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), and High-Resolution TEM (HRTEM). Scanning Probe Microscopy: Atomic Force Microscopy (AFM), Scanning Tunneling Microscopy (STM), and Kelvin Probe Force Microscopy (KPFM). Spectroscopic Techniques: X-ray Photoelectron Spectroscopy (XPS), Energy-Dispersive X-ray Spectroscopy (EDS), Raman Spectroscopy, and UV-Vis Absorbance. Structural and Surface Profiling: X-ray Diffraction (XRD), Dynamic Light Scattering (DLS), Brunauer-Emmett-Teller (BET) surface area analysis, and Zeta Potential measurement. Nanoengineering Domains and Applications Nanoelectronics and Semiconductor Engineering: High-electron-mobility transistors (HEMTs), single-electron devices, spintronics, phase-change memory, and quantum computing hardware. Nanomedicine and Biotechnology: Targeted drug delivery vehicles, theranostics, biosensors, DNA origami, scaffold-based tissue engineering, and magnetic hyperthermia. Energy and Environmental Nanotechnology: Perovskite/quantum dot solar cells, nanostructured battery electrodes, supercapacitors, hydrogen storage nanomaterials, nano-catalytic water purification, and point-of-use air filtration. Nanophotonics and Plasmonics: Surface-enhanced Raman scattering (SERS) substrates, metamaterials, photonic crystals, nano-lasers, and light-trapping architectures. Industrial and Structural Nanoengineering: Anti-corrosion nanocoatings, self-healing materials, ultra-high-strength nanostructured alloys, nanostructured lubricants, and nanocomposite packaging. EHS, Safety, and Ethical Frameworks Nanotoxicology: Cellular uptake mechanics, reactive oxygen species (ROS) generation, biopersistence, and bioaccumulation patterns. Environmental Impact: Lifecycle analysis of engineered nanomaterials, fate and transport in water systems, and ecotoxicology. Regulatory and Standardization Issues: Exposure limits in manufacturing, hazardous waste classification, standard material definitions, and societal implications.