This book provides a comprehensive exploration of nanomaterials, offering insights into their diverse morphologies and applications. Chapters delve into the industrial potential of nanocellulose-based aerogels, the future of light-driven and UV-photodetector materials, and the use of functionalized nanomaterials for wastewater restoration. It explores the pivotal role of nanobiotechnology in water purification and introduces nanopharmaceuticals as a promising frontier in clinical medicine. The book addresses safety concerns related to occupational exposure to nanomaterials, highlighting hazards and toxicity. Additionally, it discusses the environmental effects of nanotechnology innovation. This multifaceted approach caters to professionals, researchers, and enthusiasts navigating the evolving landscape of nanomaterials.