Magnetic nanoparticles: Historical background, classifications and types, compositions, structure, and fundamental properties Synthesis methods of magnetic nanoparticles Green chemistry mediated synthesis of magnetic nanoparticles: Synthesis, properties, and applications Cutting-edge environmental solutions using functionalized magnetic nanoparticles Characterization techniques of magnetic nanoparticles Industrial scale fabrication and processing methods of functionalized magnetic nanoparticles Applications of functionalized magnetic nanoparticles in biotechnology and bioprocessing industry Applications of FMNPs in food analysis and food safety Applications of functionalized magnetic nanoparticles in biomedical and pharmaceutical industry Transformative role of functionalized magnetic nanoparticles in advancing translational biomedical innovations and pharmaceutical sciences Applications of functionalized magnetic nanoparticles in surfaces and coatings Applications of nanomaterials and FMNPs in textiles industry Applications of functionalized magnetic nanoparticles in digital electronics, optoelectronic, and semiconductor industry Applications of functionalized magnetic nanoparticles in cosmetics industry Effect of magnetic nanoparticles in solar energy applications Applications of functionalized magnetic nanoparticles in the catalysis industry: A step toward sustainable development Applications of functionalized magnetic nanoparticles in environmental industry Applications of functionalized magnetic nanoparticles in energy sectors Application of functionalized magnetic nanoparticles in construction materials Green and sustainable future, environmental, legal, health, and safety issues of functionalized magnetic nanoparticles.