Description
This book provides a comprehensive introduction to nanoscience and nanotechnology with a focused emphasis on ferrite-based nanomaterials, particularly spinel ferrites. It begins by establishing fundamental nanoscale concepts and classifications of nanomaterials based on origin, structure, and dimensionality, followed by detailed discussions of fabrication methods including top–down and bottom–up approaches. The scientific basis of metal oxide nanoparticles and the origin and evolution of magnetism are explored to build a strong foundation for understanding magnetic nanomaterials. Special attention is given to ferrites, highlighting their ferrimagnetic behavior, high electrical resistivity, and importance in high-frequency applications. A major focus of the book is the crystal structure and cation distribution in spinel ferrites, including normal, inverse, and mixed spinel configurations. The influence of synthesis methods and nanoscale effects on magnetic and physicochemical properties is systematically examined. The book also discusses applications of spinel ferrite nanoparticles in electronics, electromagnetic shielding, environmental remediation, sensing, and biomedical technologies such as magnetic hyperthermia and targeted drug delivery. Designed for postgraduate students, researchers, and professionals, this book offers a clear structure–property–application perspective on spinel ferrite nanomaterials.