Nanotechnology has been recognized for its transformative potential across various industries for decades, sparking widespread interest among researchers and innovators seeking to explores its capabilities for sustainable solutions. It remains one of the most dynamic and extensively studied fields in modern science. Nanotechnology involves the manipulation of matter at the nanoscale, where unique properties of materials emerge due to their size and structure. These nanomaterials play a pivotal role in advancing applications in energy, healthcare, environmental remediation and sustainable economic development. In recent years, green nanotechnology, particularly the eco-friendly synthesis of nanomaterials, has gained significant attention for its ability to minimize environmental impact while maximizing efficiency. Nanomaterials exhibit remarkable properties such as enhanced strength, conductivity and reactivity that make them indispensable in addressing global challenges like climate change, water scarcity and healthcare innovation, positioning nanotechnology as a cornerstone of sustainable progress. The book delves into the structural and functional properties of nanomaterials, which are critical for their applications in clean energy production, environmental remediation, water treatment and healthcare. It highlights their environmental significance, including their use in mitigating climate change, enhancing construction materials, and developing fire-retardant solutions. The fundamentals of nanotechnology are thoroughly explored, alongside cutting-edge developments in synthesis, characterization methods, and applications, covering chemical, optical, thermal, and structural properties. Additionally, the book addresses the environmental fate, health hazards, and regulatory frameworks of nanomaterials, offering a balanced perspective on their deployment. With contributions from leading experts, this book serves as an authoritative resource for researchers, policymakers, and industry professionals to drive sustainable economic growth while addressing pressing global challenges. Key Features:Comprehensive Coverage: The book spans a wide range of nanotechnology applications, from energy production and storage to healthcare, environmental remediation and sustainable economic development. Multidisciplinary Approach: Contributions from various experts provide insights into nanotechnology's role in diverse fields, including construction, fire retardancy and climate change mitigation. Focus on Sustainability: Emphasis on eco-friendly and green nanotechnology solutions, such as green synthesis of nanomaterials and sustainable development goals (SDGs). Environmental and Health Perspectives: Detailed exploration of nanomaterials' environmental fate, transport, and health hazards alongside their role in environmental remediation and water treatment. Policy and Regulation Insights: Discussion on policy and regulatory frameworks to support a green economy through nanotechnology. Future-Oriented Outlook: Analysis of current trends and future prospects, particularly in healthcare, clean energy and sustainable economic development. Expert Contributions: Chapters authored by specialists in their respective fields, ensuring authoritative and in-depth content. Lifecycle Thinking: Inclusion of lifecycle perspectives to assess the long-term impacts and sustainability of nanotechnology applications.