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Electromagnetic interference (EMI) shielding materials prevent the transmission of electromagnetic (EM) radiation by reflection and/or absorption or by suppression. Emerging nanomaterials can be used effectively for EMI shielding. This book explores all aspects of EMI materials and focuses on the most recent advances and trends in the synthesis, processing, and characterization of electromagnetic shielding materials. Fundamentals of shielding theory, the practice of electromagnetic field measuring techniques, some of the EMI standards, novel materials employed (like MXenes), and the application of these materials in various fields are discussed. Features: Provides a fundamental overview of EMI shielding and its effects on the environment and other electronics. Includes a comprehensive overview of the sources and effects of EM radiation. Explains the synthesis, characterization methods, and properties of materials used to protect against radiation. Gives insights into the physics of EMI shielding and its associated mechanisms. Examines the current state of the art and new challenges in this area. This book is aimed at researchers and engineers working in the fields of electromagnetic interference shielding, polymer science, materials science, nanotechnology, and other allied subject areas.