This chapter introduces the rapidly evolving field of nano-biotechnology, tracing its historical origins and development into a distinct interdisciplinary domain. Beginning with foundational concepts and terminology, it explores the convergence of nanotechnology with biological sciences, highlighting key application areas such as medicine, agriculture, environmental remediation, and industrial bioprocessing. The discussion further investigates emerging trends and future prospects, with particular focus on the integration of artificial intelligence and Internet of Things technologies within nano-biotechnological systems. Through a comprehensive analysis of current research directions and technological capabilities, this chapter provides a framework for understanding how nanoscale manipulation of biological systems is revolutionizing approaches to global challenges in healthcare, food security, and environmental sustainability.